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Electronic array scanning

Subclass of:

600 - Surgery

600300000 - DIAGNOSTIC TESTING

600407000 - Detecting nuclear, electromagnetic, or ultrasonic radiation

600437000 - Ultrasonic

600443000 - Anatomic image produced by reflective scanning

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Entries
DocumentTitleDate
20100010352ULTRASONIC DIAGNOSTIC IMAGING SYSTEM WITH AUTOMATIC CONTROL OF PENETRATION, RESOLUTION AND FRAME RATE - An ultrasonic diagnostic imaging system and method are presented in which the balance between image resolution and frame rate (Res/Speed) and the balance between image resolution and penetration (Pen/Gen/Res) are automatically adjusted in response to image content. A motion detector analyzes the relative motion between successive images. If the motion content is relatively high, the imaging parameters are changed in favor of relatively greater frame rate and reduced resolution. A low motion content causes the opposite adjustment. The electronic noise between successive images is also computed with a relatively high noise content (low correlation) in the far field resulting in an adjustment to penetration as by lowering the transmit frequency. A relatively low noise content causes an adjustment in favor of increased resolution.01-14-2010
20090005684TRANSMIT BEAMFORMING IN 3-DIMENSIONAL ULTRASOUND - An ultrasound system comprises a probe including a two-dimensional (2D) array of transducer elements that form an aperture having a plurality of receive elements that are configured to receive ultrasound signals. The transducer elements form at least one transmit sub-aperture that is configured to be interconnected with a fixed group of the transducer elements within the aperture. Transmitters generate electrical transmit signals, and at least one transmit sub-aperture processor (tx SAP) maps the transducer elements within the fixed group of the transducer elements to the transmitters in a transmit configuration based on a beam steering direction.01-01-2009
20130085393AUTOMATED HEART RATE DETECTION FOR 3D ULTRASONIC FETAL IMAGING - An ultrasound system and method provide a workflow to acquire 3D images of the fetal heart gated by a synthetic heart gating signal. An ROI is defined in an ultrasound image which delineates the fetal heart. The ultrasound system is controlled to automatically estimate the fetal heart rate from echo signals received from the ROI. When the system has acquired a stable synthetic heart rate signal, an indication thereof is given to the user and the user then commands the system to acquire 3D fetal heart images for a number of fetal heart cycles which are gated using the synthetic heart rate signal.04-04-2013
20090192387CONTINUOUS ACQUISITION AND PROCESSING OF ULTRASOUND COLOR DATA - A method displays ultrasound color flow image data in a plurality of output frames by continuously acquiring color flow image data. Each output frame includes a plurality of scan lines that collectively represent a field of view for an ultrasound image. The method includes sequentially transmitting a plurality of ultrasound beams. For each of the transmitted beams, multiple receive beams are formed along respective parallel scan lines. As the sequence progresses, sets of co-linear receive beams are formed along each of the respective scan lines at a predetermined rate both within a particular frame and between successive frames. The method also includes processing the sets of co-linear receive beams along each of the respective scan lines to generate color flow image data corresponding to the respective scan lines, and displaying a color flow image representing the generated color flow image data.07-30-2009
20130079639SYSTEM AND METHOD FOR ULTRASOUND IMAGING - Embodiments presented herein describe a method, a system and a computer program product for ultrasound imaging. The method in one example includes receiving a plurality of ultrasound echo signals from a plurality of transducer elements in response to ultrasound transmit beams. The method computes beam sums of ultrasound echo signals originating from a point to be imaged, for the corresponding ultrasound transmit beams. The method generates a time record comprising a plurality of beam sums, wherein the time record includes beam sums corresponding to multiple instants of time in a time window. The method filters the time record based, at least in part, on a predetermined response function. Finally, the method reconstructs the point to be imaged based on one or more of the filtered time records corresponding to one or more of the plurality of ultrasound transmit beams. The method repeats this process for each point to be imaged.03-28-2013
20130079640ULTRASOUND DIAGNOSTIC APPARATUS AND METHOD OF PRODUCING ULTRASOUND IMAGE - An ultrasound diagnostic apparatus includes a transducer array having a plurality of transducers arranged in an array, a transmission circuit which supplies an actuation signal to each transducer of the transducer array to transmit an ultrasonic wave toward a subject, a reception circuit which corrects a reception signal output from each transducer having received an ultrasonic echo from the subject in accordance with an angle between a reflection point in the subject and an acoustic radiation surface in each transducer to produce sample data, and an image producer which produces an ultrasound image on the basis of a sound ray signal obtained through phasing addition of sample data produced by the reception circuit.03-28-2013
20130079641ULTRASOUND GARMENT - Disclosed is an ultrasound assembly. The ultrasound assembly includes a garment configured to be affixed to a portion of a living body, and at least one ultrasound transducer having a fixed position on the garment and configured to provide at least one of: produce and receive, ultrasound signals that pass through the living body. The ultrasound assembly further includes an ultrasound processing unit operatively associated with the at least one ultrasound transducer and configured to process the ultrasound signals following passage through the living body, and an ultrasound-interface unit operatively associated with the ultrasound processing unit and configured to provide information with respect to the ultrasound signals following passage through the living body.03-28-2013
20130035595Method and Apparatus to Produce Ultrasonic Images Using Multiple Apertures - A combination of an ultrasonic scanner and an omnidirectional receive transducer for producing a two-dimensional image from received echoes is described. Two-dimensional images with different noise components can be constructed from the echoes received by additional transducers. These can be combined to produce images with better signal to noise ratios and lateral resolution. Also disclosed is a method based on information content to compensate for the different delays for different paths through intervening tissue is described. The disclosed techniques have broad application in medical imaging but are ideally suited to multi-aperture cardiac imaging using two or more intercostal spaces. Since lateral resolution is determined primarily by the aperture defined by the end elements, it is not necessary to fill the entire aperture with equally spaced elements. Multiple slices using these methods can be combined to form three-dimensional images.02-07-2013
20100145198ULTRASOUND DIAGNOSIS APPARATUS06-10-2010
20130041262FOCAL POINT INFORMATION DETERMINATION METHOD AND APPARATUS, AND AMBIENT SOUND VELOCITY OBTAINING METHOD AND APPARATUS - Transmitting an ultrasonic wave focused on a predetermined transmit focus position by driving each of the elements of the ultrasonic probe based on a predetermined transmit delay time, and determining a true focal position of the ultrasonic wave transmitted to the transmit focus position or a focal point valid region that includes the true focal position based on a receive signal received by each element according to a reflection wave reflected by the transmission of the ultrasonic wave to the transmit focus position.02-14-2013
20090156936Ultrasound 3D imaging system - The present invention relates to an ultrasound imaging system in which the scan head either includes a beamformer circuit that performs far field subarray beamforming or includes a sparse array selecting circuit that actuates selected elements. When used with second stage beamforming system, three dimensional ultrasound images can be generated.06-18-2009
20090156937ULTRASONIC DIAGNOSTIC APPARATUS AND METHOD OF CONTROLLING THE SAME - In an ultrasonic diagnostic apparatus, a scan controller inputs a trigger signal corresponding to heartbeat period, scans an ultrasonic beam such that a particular diagnostic region of a body under examination is scanned with the ultrasonic beam a plurality of times in response to each trigger signal, and controls the scan repetition period by controlling the pulse repetition period of the transmission pulse. An image generation unit generates an image corresponding to each of the pulse repetition periods. The scan controller controls the pulse repletion period such that an integral multiple of the scan repetition period is equal to a reference value determined based on the period of the trigger signal.06-18-2009
20090156935Three Dimensional Diagnostic Ultrasound Imaging System with Image Reversal and Inversion - A three dimensional ultrasonic imaging system acquires 3D image data from a volumetric region and processes the image data to produce a live 3D image of the volumetric region in a given orientation. A user control can be switched by a user to present the image in a different orientation if desired. Both the anatomy in the 3D image and the image format can be inverted, and the left-right appearance of the 3D image can be reversed with a corresponding front-back reversal of the anatomy.06-18-2009
20090043206SYSTEM AND METHOD FOR THREE-DIMENSIONAL ULTRASOUND IMAGING - Under one aspect, an ultrasound system for producing a representation of an object includes: a concave transducer array configured to transmit ultrasonic pulses into the object and to receive ultrasonic pulses from the object, the ultrasonic pulses from the object containing structural information about the object, each transducer in the array generating an output signal representative of a portion of the structural information about the object; a multi-focal lens structure for focusing the transmitted ultrasonic pulses; a multiplexing structure in operable communication with the concave transducer array and including logic for coupling the output signals from at least one pair of transducers in the concave transducer array; and a beamformer in operable communication with the multiplexing structure and including logic for constructing a representation of structural information about the object based on the coupled output signals from the multiplexing structure.02-12-2009
20090306512Coherent Image Formation for Dynamic Transmit Beamformation - Retrospective dynamic transmit beamformation is provided in medical ultrasound imaging. Using parallel receive beamformation, sets of data representing locations in at least a common field of view are obtained, each set in response to a transmit with a spatially distinct phase front. The common field of view receive data are time aligned and amplitude weighted for retrospective transmit focusing and retrospective transmit apodization, respectively. A time offset, such as of a cycle or more in some cases, is applied to the receive data for retrospective transmit focusing. The offset is selected to emulate shifting the transmit delay profile to be tangentially intersecting with the dynamic receive delay profile for each location which is the desired transmit delay profile. A weight is applied to the receive data for retrospective transmit apodization. The weight is selected based on the desired transmit apodization profile. The offset and weighted data representing a same location from different transmit events is coherently combined. The number of sets of data offset, weighted and combined may vary as a function of depth for dynamic transmit beamformation.12-10-2009
20090306511ULTRASOUND IMAGING APPARATUS AND METHOD FOR GENERATING ULTRASOUND IMAGE - For a three-dimensional region including a treatment target site of a patient, a puncture needle scanning region R12-10-2009
20090306510Ultrasound Imaging Apparatus - An ultrasound imaging apparatus comprising a plurality of transducer elements images an object by making use of the plurality of transducer elements whose received signals are given delays, transmitting a pulse ultrasonic wave to the object and receiving its reflected wave. The transducer elements are divided into a plurality of blocks and the transducer elements in each of the blocks are selected by a selecting means so that the delays given to the received signals for the transducer elements in each of the blocks are identical.12-10-2009
20090118616Three Dimensional Ultrasonic Scanning With a Steerable Volumetric Region - A three dimensional ultrasonic imaging system produces a live steerable 3D image of a volumetric region of a subject. The system includes a user control which is continuously adjustable by a user to sweep the displayed 3D volume between the limits of left and right beam steering angles of an electronically steered matrix array transducer.05-07-2009
20090093720RECEIVE CIRCUIT FOR MINIMIZING CHANNELS IN ULTRASOUND IMAGING - Receive circuits and associated methods are provided for ultrasound imaging. Both subarray mixing and time division multiplexing are provided with a same circuit. Components of the receive circuit respond to either phasing or time slot information to implement subarray mixing or time division multiplexing. A network of switches allows combination of signals from different elements to form different sub-apertures. A controller minimizes power consumption while outputting the desired phase or time division multiplexed information by gating a clock to various registers. Each of the registers corresponds to different groups of transducer elements. For loading new phasing information, the clock is turned on to the desired register. Duration operation of the receive circuit, the clock is gated off. The register outputs the previously loaded values in a static state without clocking. Preamplification for either of time division or subarray mixed signals is provided using a variable gain amplifier with a common mode feedback. The common mode feedback provides for a constant operating point despite changes in the desired amount of gain.04-09-2009
20090093719HANDHELD ULTRASOUND IMAGING SYSTEMS - A handheld ultrasound device is provided, having a transducer assembly for emitting and receiving sonic signals, a configurable signal processing unit, and a data processor configured to provide configuration data to the signal processing unit. The configuration data defines a beamforming configuration, filtering configuration and envelope detection configuration for an operational mode. The operational mode may be selected by the user or may be determined based on a detected type of the transducer assembly.04-09-2009
20130072800METHOD & APPARATUS FOR GENERATING DIAGNOSIS IMAGE, PROBE, & METHOD OF CONTROLLING THE PROBE - A diagnosis image generating apparatus including a plurality of probes, the diagnosis image generating apparatus including at least one element included in each of the plurality of probes; a selecting unit which selects a probe from among the plurality of probes; and a diagnosis image generating unit which generates a diagnosis image of the object by using the selected probe.03-21-2013
20130072799ULTRASOUND DIAGNOSTIC APPARATUS AND ULTRASOUND IMAGE GENERATING METHOD - An ultrasound diagnostic apparatus includes an array transducer, a transmission driver for transmitting an ultrasonic beam from the array transducer toward a subject, a reception circuit for processing a pair of reception signals in a pair of available channels of the array transducer having received an ultrasonic echo produced by the subject, with the pair of available channels being those channels which belong to channels simultaneously made available for reception of the ultrasonic echo and are arranged symmetrically about a transmit beam axis, so as to generate reception data in one piece, and outputting the generated reception data as reception data in each of the pair of available channels, and an image generating unit for generating an ultrasound image based on the reception data outputted from the reception circuit.03-21-2013
20110015525ULTRASONOGRAPH - Provided is an ultrasonograph that scans a subject in a region of two or more dimensions. The ultrasonograph includes an array transducer (01-20-2011
20130060142ULTRASOUND DIAGNOSTIC APPARATUS AND METHOD OF PRODUCING ULTRASOUND IMAGE - An ultrasound diagnostic apparatus includes an operating unit which sets multistage focus positions through operation by an operator, and a multistage focus position correction unit which, when an inter-focus position distance at the multistage focus positions set through the operating unit exceeds an allowable range set in advance for each measurement depth, automatically corrects the multistage focus positions so as to be within the allowable range.03-07-2013
20090270733ULTRASONIC IMAGING APPARATUS AND METHOD - An ultrasonic imaging method using an ultrasonic probe for applying a first ultrasonic beam to a first region of three-dimensional region of a subject with a contrast agent administered thereto and acquiring three-dimensional tomographic image information for the first region, including the steps of: setting a second region for applying a second ultrasonic beam whose sound pressure is higher than that of the first ultrasonic beam for not destroying the contrast agent, in the three-dimensional region; and applying the second ultrasonic beam to exceed sound pressure for destroying the contrast agent only in the second region and performing the irradiation of the second ultrasonic beam by the ultrasonic probe in the course of acquisition of the three-dimensional tomographic image information in the first region by the first ultrasonic beam.10-29-2009
20120226162ULTRASOUND PROBE AND ULTRASOUND DIAGNOSTIC APPARATUS - An ultrasound probe includes a transducer array including vibrators arrayed in an azimuth direction each of which constitutes a single channel and has first transducer centrally located in an elevation direction and second transducers located on both sides of the first transducer, a first transmission and reception section for the first transducers of the respective channels, a second transmission and reception section for the second transducers of the respective channels, and a controller for controlling the first transmission and reception section to obtain reception data for B mode image through a simultaneous aperture for B mode image while controlling the first transmission and reception section and the second transmission and reception section to obtain reception data for sound speed through a simultaneous aperture for sound speed that is broader than the simultaneous aperture for B mode image.09-06-2012
20100081936ULTRASONIC DIAGNOSIS APPARATUS AND ULTRASONIC TRANSMISSION/RECEPTION METHOD - An ultrasonic diagnostic apparatus includes an ultrasonic probe including a plurality of ultrasonic transducers, a transmission driving signal generating unit which generates transmission driving signals for forming a plurality of transmitting beams in one ultrasonic transmission and supplies the transmission driving signals to the respective ultrasonic transducers, a calculation unit which calculates delay times of the transmission driving signals for forming the transmitting beams for the respective ultrasonic transducers so as to arrange the respective transmitting beams in centers of fundamental receiving parallel/simultaneous beam groups with a plurality of receiving beams being a unit in which a plurality of receiving beams formed based on the reflected waves are arranged three-dimensionally at equal or equiangular intervals, and a control unit which controls the transmission driving signal generating unit based on each of the calculated delay times.04-01-2010
20130066210ULTRASONIC DIAGNOSTIC APPARATUS AND MEDICAL IMAGE PROCESSING APPARATUS - According to one embodiment, a transmission/reception unit generates a reception signal. A signal extraction unit extracts a harmonic signal and fundamental wave signal from the reception signal. A calculation unit calculates a feature amount based on values corresponding to the amplitudes of the harmonic signal and fundamental wave signal. An area determination unit determines an area in a scanned area based on the feature amount and a predetermined threshold. A change unit changes the value corresponding to the amplitude of the harmonic signal in the determined area. An image generation unit generates a corrected harmonic image based on the harmonic signal in the scanned area including the determined area having the changed value.03-14-2013
20110021920Switch for Aperture Control in Medical Diagnostic Ultrasound Imaging - Switching is provided in a transducer array of medical diagnostic ultrasound imaging. The switching controls the formation of macro elements or aperture for scanning a plane or volume. The switches are implemented with one or more transistors. The control causes the gates of the transistor to float during the “on” connection. While on, the switch connects, allowing ultrasound signals to pass through the switch.01-27-2011
20090240152Digital Ultrasound Beam Former with Flexible Channel and Frequency Range Reconfiguration - A digital ultrasound beam former for ultrasound imaging, that can be configured by a control processor to process the signals from ultrasound transducer arrays with variable number of elements at variable sampling frequencies, where the lowest sampling frequency allows for the highest number of array elements. The maximal number of array elements is reduced in the inverse proportion to the sampling frequency. The beam former can be operated both in a RF-sampling mode and a quadrature mode. Parallel coupling of transmit/receive circuits for each element allow adaption of the receive Noise Figure and transmit drive capabilities to variations in the electrical impedance of the array elements.09-24-2009
20100087737ULTRASOUND IMAGING APPARATUS AND METHOD FOR GENERATING ULTRASOUND IMAGE - A bias gate part supplies a bias current to a transmission pulse generator. The transmission pulse generator receives the supply 6of the bias current, amplifies an input voltage, and supplies an output voltage obtained by the amplification to array transducer elements. In accordance with the timing of transmitting ultrasound waves from the array transducer elements and the level of the output voltage supplied to the array transducer elements, the bias gate part supplies the bias current to the transmission pulse generator while changing the timing of supplying the bias current.04-08-2010
20130165791SUBJECT INFORMATION ACQUIRING APPARATUS AND SUBJECT INFORMATION ACQUIRING METHOD - A subject information acquiring apparatus of the present invention includes a probe which has a plurality of elements arranged in an array which receive elastic waves propagating within a subject and converts the received elastic waves to a received signals, a first signal processing unit which uses the received signals output by the elements to calculate a first output signal corresponding to the elastic waves from a target position, a second signal processing unit which uses the first output signal for the target position to calculate a second output signal corresponding to elastic waves from the target position, and an image processing unit which uses the second output signal to generate image data for display. In this case, at least one of the first signal processing unit and the second signal processing unit uses adaptive signal processing to calculate the first output signal or the second output signal.06-27-2013
20120238878ULTRASOUND DIAGNOSTIC APPARATUS AND ULTRASOUND IMAGE PRODUCING METHOD - An ultrasound diagnostic apparatus includes a transmission and reception circuit which electronically scans with a transducer array in an ultrasound probe for acquiring two-dimensional image data; an image producer which produces a three-dimensional ultrasound image using the acquired two-dimensional image data while mechanically scanning with the transducer array in a direction substantially orthogonal to the array direction of the transducer array; and a controller which, when the internal temperature of the ultrasound probe is equal to or higher than a first set value, controls the transmission and reception circuit such that a composite scan including two different electronic scans is performed.09-20-2012
20120238877ULTRASOUND DIAGNOSTIC APPARATUS AND ULTRASOUND IMAGE PRODUCING METHOD - An ultrasound diagnostic apparatus includes: a convex type ultrasound probe including a transducer array with a curvature; an image producer for producing a B mode image based on reception data; an abdominal wall detector for detecting an abdominal wall of the subject on the B mode image; a controller for obtaining reception data for a sound speed map by transmitting and receiving ultrasonic beams for a sound speed map through the transducer array by convex scan when a shape of the abdominal wall substantially corresponds to the curvature of the transducer array and by transmitting and receiving ultrasonic beams for a sound speed map through the transducer array by linear scan when the shape of the abdominal wall is substantially linear; and a sound speed map producer for producing a sound speed map based on the obtained reception data for a sound speed map.09-20-2012
20100249596RECEIVE BEAMFORMER FOR ULTRASOUND HAVING DELAY VALUE SORTING - A method of processing ultrasound signals received from a plurality of data channels each associated with a transducer element. A sorted delay data table having sorted delay data is generated that includes a channel identifier, a fractional delay value, and integer delay value. The sorted delay data table clusters together channel groups including a first channel group having data channels with the first fractional delay value and a second channel group with data channels with the second fractional delay value. Control signals are generated based on the sorted delay data that implements data path combining by directing channel data from the first channel group for processing by a first interpolation filter that provides the first fractional delay value and channel data associated with the second channel group for processing by a second interpolation filter that provides the second fractional delay value. Summing signals output by the first and second interpolation filter forms the ultrasound beamformed signal.09-30-2010
20110118605SPATIAL COMPOUND IMAGING IN AN ULTRASOUND SYSTEM - Embodiments for forming an ultrasound spatial compound image by correcting refraction of ultrasound signals in an ultrasound system are disclosed herein. An ultrasound data acquisition unit forms a first set of ultrasound frame data and a second set of ultrasound frame data by using non-steered scan lines and steered scan lines, respectively. The processor, which is coupled to the ultrasound data acquisition unit, forms a plurality of sets of resampled ultrasound frame data based on the second set of ultrasound frame data, selects one particular set of ultrasound frame data from the group consisting of the second set of ultrasound frame data and the plurality of sets of resampled ultrasound frame data based on the first set of ultrasound frame data and spatially compounds the one particular set of ultrasound frame data and the first set of ultrasound frame data to form an ultrasound spatial compound image.05-19-2011
20090299184IMAGING OR COMMUNICATIONS SYSTEM UTILIZING MULTISAMPLE APODIZATION AND METHOD - Methods systems and system components for optimizing contrast resolution of an imaging or sensing system utilizing multiple channels of broadband data associated with an array of transducers. Channels or data are filtered by passing the channels of data through finite impulse response (FIR) filters on each channel. The filters each have multiple taps having tap weights pre-calculated as a function of distance of the array from an object that energy is being transmitted to or reflected from. The weights are pre-computed through a deterministic equation based on an a priori system model.12-03-2009
20110295123CURVED LINEAR ARRAY TRANSDUCER, SYSTEM AND METHOD - A focused ultrasound beam is created using a probe having a curved linear array. The curved linear array is asymmetric and two dimensional comprising individual parallel circumferential, linear sub-arrays disposed at a distal end of a probe. A first sub-array is disposed proximate a distal end and a final sub-array is disposed proximate a proximal end with subsequent sub-arrays disposed between the first and final array. In practice, the first sub-array transmits a set of pulses of ultrasound radiation for a period of time then an adjacent array transmits a set of pulses of ultrasound radiation after a lag. The transmissions by each sub-array continue with a lag between each array transmission until the final sub-array transmits a final set of pulses of ultrasound radiation. The pulse is generated by each transmission is steered and focused depending on the phases and amplitudes of the pulses of ultrasound radiation transmitted by the full set of elements in the transmitting sub-arrays. The set of multiple pulses permits interrogating individual voxels in a scanned volume from different directions.12-01-2011
20110295122SYSTEM AND METHOD FOR ULTRASOUND IMAGING WITH A CONFIGURABLE RECEIVE APERTURE - A system and method of ultrasound imaging includes a beamformer including a plurality of channels, a two-dimensional transducer array including a plurality of elements, and a plurality of signal pathways linking the plurality of elements to the plurality of channels. The system and method also include a plurality of switches positioned along the plurality of signal pathways. The plurality of switches being configured to actively connect a subset of the plurality of elements to the plurality of channels in order to form a receive aperture. The plurality of switches are further configured to control an aspect ratio of the receive aperture by changing which of the plurality of elements are actively connected to the plurality of channels.12-01-2011
20100069756ULTRASONIC DIAGNOSTIC APPARATUS AND COMPUTER PROGRAM PRODUCT - A region-of-interest setting unit sets a region of interest to be included in an ultrasound image. A first movement-amount calculating unit sequentially calculates a movement amount of the set region of interest between reception data along the time sequence as a first movement amount. A transmitting-receiving delay-amount computing unit computes a delay amount for sequentially shifting a scan region of an ultrasonic beam based on the sequentially calculated first movement amount. A computation/control circuit performs control so as to generate a high voltage pulse based on the computed delay amount. A second movement-amount calculating unit sequentially calculates a movement amount of the region of interest between image data along the time sequence as a second movement amount. A display-position correcting unit performs a correction such that the region of interest included in the image data is to be displayed at the same display position, based on the second movement amount.03-18-2010
20100036251DELAY ADJUSTMENT MODULE AND ULTRASONIC RECEIVING BEAM FORMING APPARATUS - A delay adjustment memory is shared by two signal processing channels, a signal in one signal processing channel having a smaller delay time of the two signal processing channels is adjusted in delay by the delay adjustment memory, and another signal in the other signal processing channel having a larger delay time is directly supplied to a subsequent calculation unit without passing through the delay adjustment memory, thereby performing the ultrasonic receiving beam forming processing.02-11-2010
20090149757Three Dimensional Ultrasonic Scanning With Live Subvolumes - A three dimensional ultrasonic imaging system includes a matrix array transducer which is capable of scanning beams over a maximal volumetric region. The array transducer is operable to selectively scan one of a plurality of subvolumes of the maximal volumetric region at a real time scanning rate such that a live 3D image of the subvolume is processed and displayed. A user control is actuated to step the system through the scanning of a sequence different subvolumes. In an illustrated embodiment the maximal volumetric region encompasses the heart, and the system can be stepped through the scanning and display of live 3D images of front, center, and back subvolumes of the heart.06-11-2009
20100056921QUANTIFIED PERFUSION STUDIES WITH ULTRASONIC THICK SLICE IMAGING - An ultrasonic diagnostic imaging system scans a plurality of planar slices in a volumetric region containing tissue which has been perfused by a contrast agent. The plurality of slices scanned are parallel to each other. Following detection of the image data of the slices the slice data is combined by projecting the data in the elevation dimension to produce an elevationally combined slice image. Combining may be by means of an averaging or maximum intensity detection or weighting process or by raycasting in the elevation dimension in a volumetric rendering process. The elevationally combined slice image is processed to produce a qualitative or quantitative measure of perfusion, such as an image with degrees of perfusion indicated by a range of brightness levels, an image of color perfusion parameters, or a perfusion curve or curve parameter indicating rate of perfusion.03-04-2010
20100280382BONE FRACTURE DETECTION - Apparatus for detecting a fracture in a bone, the apparatus comprising: an electric field generator, configured to generate an electric field in proximity of the bone, at a predefined frequency range, the generated electric field being substantially parallel to longitudinal axis of the bone; an electric field measurer, associated with the electric field generator, and configured to measure intensity values of the generated electric field over the predefined frequency range, and an analyzer, associated with the electric field measurer, and configured to analyze the intensity values measured over the predefined frequency range, thereby to detect the fracture in the bone.11-04-2010
20090299185DIAGNOSTIC ULTRASOUND APPARATUS - A novel diagnostic ultrasound apparatus has a plurality of ultrasound probes 12-03-2009
20080269610Method and apparatus for automatic optimization of scanning parameters for ultrasound imaging - An ultrasonic probe has transducer elements for transmitting and receiving ultrasound signals to form an ultrasound image. An optimization module receives a first scanning depth based on the ultrasound image and determines a first transmit pattern and receive filter settings based on the first scanning depth. The first transmit pattern and the receive filter settings are used to acquire the ultrasound image. Transmit and receive circuitry transmit and receive the ultrasound signals based on the first transmit pattern10-30-2008
20090292207ULTRASONIC DIAGNOSTIC APPARATUS - An ultrasonic diagnostic apparatus in which degradation in calculation accuracy and increase in calculation time can be prevented while an ultrasonic image with high resolving power is generated by using appropriate acoustic velocities for respective regions within an object. The apparatus includes: a transmitting and receiving unit for processing reception signals; a reception control unit for performing focusing processing based on acoustic velocity values to generate a sound ray signal; an image generating unit for generating an image signal based on the sound ray signal; a focusing determining unit for determining a degree of beam focusing in the focusing processing with respect to plural first regions; and an acoustic velocity value correcting unit for obtaining acoustic velocity values with respect to the plural first regions and further obtaining acoustic velocity values with respect to plural second regions segmented in smaller regions than the plural first regions.11-26-2009
20110208059Ultrasound probe - An ultrasound probe for diagnostic images includes a set or array of electroacoustic transducers generating an ultrasonic beam and defining at least one scan plane or a predetermined scan volume, and one or more layers matching acoustic impedance characteristics of the transducers with acoustic impedance characteristics of tissues under examiantion. The layers overlap the transducers, on the face emitting/receiving acoustic pulses. Acoustic properties of the material or materials constituting the one or more layers, the geometric shape of the layers, and/or the structure of the transducers cause the ultrasonic beam to be apodized and the profile of the ultrasonic beam in a plane perpendicular to the scan plane and parallel to the ultrasonic beam to be highly homogeneous. The emitted pulse has a greater intensity uniformity in the part of the ultrasonic beam closer to the scan plane and a predetermined lower intensity in side lobes of the ultrasonic beam.08-25-2011
20080228077Ultrasonic medical device and associated method - A medical system includes a carrier and a multiplicity of electromechanical transducers mounted to the carrier, the transducers being disposable in effective pressure-wave-transmitting contact with a patient. Energization componentry is operatively connected to a first plurality of the transducers for supplying the same with electrical signals of at least one pre-established ultrasonic frequency to produce first pressure waves in the patient. A control unit is operatively connected to the energization componentry and includes an electronic analyzer operatively connected to a second plurality of the transducers for performing electronic 3D volumetric data acquisition and imaging (which includes determining three-dimensional shapes) of internal tissue structures of the patient by analyzing signals generated by the second plurality of the transducers in response to second pressure waves produced at the internal tissue structures in response to the first pressure waves. The control unit includes phased-array signal processing circuitry for effectuating an electronic scanning of the internal tissue structures which facilitates one-dimensional (vector), 2D (planar), and 3D (volume) data acquisition. The control unit further includes circuitry for defining multiple data gathering apertures and for coherently combining structural data from the respective apertures to increase spatial resolution. When the data gathering apertures are contained in a flexible web or carrier so that the instantaneous positions of the data gathering apertures are unknown, a self-cohering algorithm is used to determine their positions so that coherent aperture combining can be performed.09-18-2008
20100004540DUAL PATH PROCESSING FOR OPTIMAL SPECKLE TRACKING - This invention relates generally to an improved system and method that combines enhancing and mitigating techniques for speckle tracking, for obtaining a series of images of the movement of a target, such as tissue, over time. The method comprises steps of transmitting sound waves into the human body and outputting echoes of these sound waves; receiving and beamforming the echoes to produce scan line data; processing scan line data to display anatomical information using a method which reduces speckle; processing scan line data using a method or procedure which does not reduce speckle, and during one scan sequence, simultaneously acquiring the two scan line data, that data processed reducing speckle and that data processed without reducing speckle.01-07-2010
20100004541ULTRASOUND DIAGNOSIS APPARATUS - An ultrasound diagnosis apparatus that can generate and display 3D ultrasound image data of superior image quality in real time is provided. To achieve a high volume rate for acquiring 3D ultrasound image data, the ultrasound diagnosis apparatus performs 3D scans on a 3D region of an object while sequentially shifting a transmission/reception group that is comprised of each of the transmitting acoustic fields and more than five parallel simultaneous reception beam directions corresponded to each of the transmitting acoustic fields at a prescribed angular distance Δξ01-07-2010
20100280381SYSTEM AND METHOD FOR ACCELERATED FOCUSED ULTRASOUND IMAGING - A system and method for performing accelerated ultrasound imaging provides significant increases in image acquisition speed using substantially simultaneous transmission of a plurality of ultrasound beams into an object being imaged. The resulting acquired echo signal contributions resulting from the reflection of the simultaneously transmitted beams off different features of the object being imaged are separated by employing a spatial decoding scheme. The spatial decoding scheme characterizes how received signals from features within the object being imaged are measured differently by each of the elements of an ultrasound transducer. The present invention may further include a temporal encoding and decoding scheme, which includes the modulation of a potion of the ultrasound beams transmitted during a portion of ultrasound data acquisition periods, to provide improved separation of the signal components from different features.11-04-2010
20100280380Ultrasound System And Method For Ultrasound Data - An ultrasound system and method for forming ultrasound data corresponding to a receive scan line independent of a synthetic aperture. The ultrasound system includes the ultrasound data forming unit configured to: form scan line data corresponding to each of the receive scan lines by using data provided from the receive channels; form accumulated data by accumulating the scan line data corresponding to the receive scan lines of the same position; set a storing start position for storing the accumulated data based on the transmit synthesizing number; and store the accumulated data by shifting the storing start position by 1, thereby forming ultrasound data corresponding to each of the receive scan linen lines.11-04-2010
20120296215Ultrasound Imaging System Using Beamforming Techniques for Phase Coherence Grating Lobe Suppression - High-frequency ultrasound imaging can be performed with greater quality and suppressed grating lobes by using methods and systems for effectively reducing the temporal length of transmit grating lobe signals in received ultrasound echoes. Systems and methods are provided for improved high-frequency ultrasound imaging. In various aspects, the method of shortening the time domain of grating lobe signals comprises splitting an array of N transmit elements into K sub-apertures. In further aspects, the grating lobes are suppressed by performing signal processing of the shortened grating lobe signals. In certain aspects, the signal processing method comprises weighting the samples by a calculated phase coherence factor.11-22-2012
20090264760COMPOUNDING IN MEDICAL DIAGNOSTIC ULTRASOUND FOR INFANT OR ADAPTIVE IMAGING - Information is compounded in medical diagnostic ultrasound. Volumes from multiple acoustic windows for the infant head are aligned and combined. The combination provides a dataset better representing the entire region of interest. Additionally or alternatively, weighted combination of ultrasound data sets is provided. The weights adapt as a function of proximity to the transducer (e.g., near field verses far field), noise level, or other data quality parameters. In the infant head example, the adaptive weights may provide a composite data set better representing the infant head. Adaptive weights for the compounding may be used in situations other than an infant head scan.10-22-2009
20080294046Portable ultrasound imaging system - A portable ultrasound imaging system includes a scan head coupled by a cable to a portable battery-powered data processor and display unit. The scan head enclosure houses an array of ultrasonic transducers and the circuitry associated therewith, including pulse synchronizer circuitry used in the transmit mode for transmission of ultrasonic pulses and beam forming circuitry used in the receive mode to dynamically focus reflected ultrasonic signals returning from the region of interest being imaged.11-27-2008
20100137716MULTI-FUNCTIONAL ULTRASOUND IMAGING SYSTEM - A multi-functional ultrasound imaging system includes a scan imaging unit having a transmitting unit, a receiving unit, and a probe that is one of a linear array probe and a convex array probe, wherein the probe has a certain deflection angle. The system also includes a control unit configured to control said scan imaging unit to realize one of normal linear scan and additional sector scan, normal convex scan and additional sector scan. The system also includes an image processing unit configured to process image signals generated by said scan imaging unit and to convert the image signals into image data corresponding to an ultrasound image, and a display unit configured to generate the ultrasound image corresponding to the image data.06-03-2010
20090137904ULTRASONIC IMAGING APPARATUS AND ULTRASONIC IMAGING METHOD - An ultrasonic imaging apparatus captures a plurality of B-mode images of a same cross section respectively by a plurality of linear scans with different directional ultrasonic beams and creates and displays a compound image from the plurality of B-mode images. The ultrasonic imaging apparatus includes a device for capturing an image to capture a plurality of B-mode images respectively by a linear scan with an ultrasonic beam steered to a reference direction and a linear scan or scans with an ultrasonic beam or beams steered to one or more directions different from the reference direction, a device for creating an image to create a compound image using the plurality of B-mode images, and a display device to display the compound image.05-28-2009
20090326378Formation Of An Enhanced Elastic Image In An Ultrasound System - There are disclosed embodiments for forming an enhanced elastic image in an ultrasound system. An elastic image of a target object may be formed by scanning N scan lines. A control unit divides the N scan lines into M scan lines groups by using an acquisition period necessary for transmitting and receiving ultrasound signals to acquire ultrasound data. An ultrasound data acquiring unit transmits ultrasound signals to a target object and receives the ultrasound signals reflected from the target object at a predetermined transmission/reception sequence for each of the M scan line groups. This forms ultrasound data corresponding to each of the M scan line groups while a pressure is applied to the target object. An elastic image forming unit forms at least one sub elastic image corresponding to each of the M scan line groups based on the ultrasound data. The elastic forming unit sums M sub elastic images corresponding to the respective M scan line groups to thereby form an elastic image of the target object.12-31-2009
20090326377ULTRASOUND DIAGNOSIS APPARATUS - An ultrasound diagnosis apparatus that can acquire ultrasound image data of an excellent spatial resolution and contrast resolution by electrically controlling focusing points of transmission/reception waves so as to form transmitting beams and receiving beams having a substantially uniform thin beam width along an elevation direction in an object. Transmission ultrasounds emitted from a prescribed number of transducers are focused at a hypothetical point sound source. Transmitting wave-fronts propagated from the point sound source reflect at a plurality of observing points in the propagation area. Reception ultrasounds reflected at the observing points are received through a prescribed number of receiving transducers so as to generate a plurality of channels of receiving signals. The receiving signals are focused by performing receiving phase compensation and summation so that the observing point becomes a reception focusing point. The phase compensated and summed receiving signals are focused by performing wave-front phase compensation and summation in order to correct transmitting delays due to the propagation distances between the transmitting focusing point and the observing points.12-31-2009
20090024036Method and apparatus for multiple transmit contrast imaging - A method for measuring a non-linear response from a target using an imaging apparatus includes transmitting a signal towards a region of interest from a transducer at a first amplitude and measuring a first response thereto, and transmitting, from the transducer towards the region of interest, at least one additional signal of the same phase as the first amplitude signal but at one or more different, lower amplitudes and measuring at least one additional response thereto. A difference of a function of the measured additional response or responses from the first response is determined, thereby obtaining a non-linear response of the object of interest, and a representation of the non-linear response is displayed.01-22-2009
20090030317ULTRASONIC IMAGING DEVICES, SYSTEMS, AND METHODS - Ultrasonic imaging devices, systems and methods that may be used to image difficult to reach locations such as internal body cavities, etc. The ultrasonic imaging devices may be embodied in endoscopes that include one ore more channels for delivering instruments and other items to the location at which the imaging is occurring or the imaging devices may be provided in the form of a probe or other device that may, for example, be delivered through a channel located in an endoscope.01-29-2009
20090054780METHOD AND DEVICE FOR REAL-TIME COMPUTATION OF POINT-BY-POINT APODIZATION COEFFICIENTS - A method for real-time computation of point-by-point apodization coefficients used for beam-forming includes storing apodization coefficients of receiving focus points in memory, and computing at least one of an included angle between a vector from a transducer element to a receiving point and a normal vector of the transducer element, and a trigonometric function value of the included angle. The method also includes addressing the memory storing the apodization coefficients according to the quantized included angle or trigonometric function value, and reading the apodization coefficients. In one embodiment, the method may include computing in advance apodization coefficients of a receiving focus point as the starting point for the subsequent interpolation operation and another receiving focus point as the ending point, and deriving, for each receiving channel, apodization coefficients of the points situated between these two receiving focus points through an interpolation operation.02-26-2009
20080262356SYSTEMS AND METHODS FOR ULTRASOUND IMAGING USING AN INERTIAL REFERENCE UNIT - Systems and methods for ultrasound imaging using an inertial reference unit are disclosed. In one embodiment, an ultrasound imaging system includes an ultrasound unit configured to ultrasonically scan at least one plane within a region of interest in a subject and generate imaging information from the scan. An inertial reference unit is provided that detects relative positions of the ultrasound unit as the ultrasound unit scans a plurality of plane. A processing unit is configured to receive the imaging information and the corresponding detected position and is operable to generate images of the region of interest.10-23-2008
20120078105ULTRASONIC DIAGNOSTIC APPARATUS AND ULTRASONIC IMAGE PROCESSING APPARATUS - According to one embodiment, an ultrasonic diagnostic apparatus comprises a receiving unit which provides at least some of echo signals with reception delays that vary with ultrasonic transducers and adds each of the echo signals provided with the reception delays to acquire a reception beam includes a predetermined receiving direction and a reception focus and a control unit, the control unit controlling the transmission unit so that a transmission beam including a transmission direction and a transmission focus that are fixed is transmitted, the control unit also controlling the receiving unit by changing patterns of the reception delays and adding the respective patterns to at least some of the echo signals based on the transmission beam including the transmission direction and the transmission focus that are fixed in order to acquire reception beams different in receiving direction and reception focus.03-29-2012
20120197127ULTRASOUND DIAGNOSTIC APPARATUS AND ULTRASOUND IMAGE PRODUCING METHOD - An ultrasound diagnostic apparatus comprises a transducer array for transmitting ultrasonic beams to a subject, a multiplexer for sequentially selecting one channel of reception signal in every N number of channels of reception signals out of a plurality of channels of reception signals outputted from the transducer array which has received receiving ultrasonic echoes from the subject, a plurality of reception signal processors for sequentially processing an N number of channels of reception signals selected by the multiplexer to produce reception data, a beam former for performing beam forming on reception data sequentially produced by the plurality of reception signal processors and having time difference to produce sound ray signals, and an image producing unit for producing an ultrasound image based on the sound ray signals produced by the beam former.08-02-2012
20090240151ULTRASOUND DIAGNOSTIC APPARATUS - An ultrasound diagnostic apparatus includes a connection section to which an ultrasound probe having an ultrasound transducer mounted therein is detachably connected, a transmission section that drives the ultrasound transducer of the ultrasound probe connected to the connection section by a transmission signal of a transmission frequency thereof, an echo signal creation section that creates a digital echo signal from an echo signal received by the ultrasound transducer, a signal processing section that carries out signal processing to the digital echo signal, a processing-speed changing section that changes an operation frequency of the signal processing in the signal processing section, and a change control section that controls change of the operation frequency.09-24-2009
20100160783ULTRASOUND IMAGING METHOD AND APPARATUS - An ultrasound imaging method includes scanning an inspected object with a first cluster of ultrasonic beams having a first frequency and a first steer angle, to produce a first sub-frame which is used as a reference frame, and scanning the inspected object with a second cluster of ultrasonic beams having a second frequency different from the first frequency and a second steer angle different from the first steer angle, to produce a second sub-frame. The ultrasound imaging method also includes compounding the second sub-frame and the first sub-frame to form a compounded image, and displaying the compounded image.06-24-2010
20080294045Three Dimensional Ultrasonic Imaging Using Mechanical Probes with Beam Scanning Reversal - An ultrasonic probe for three dimensional scanning includes a one dimensional array transducer which is mechanically swept back and forth. As the array transducer is swept in one direction the array scans the volumetric region with image planes which are scanned from left to right. As the array transducer is swept in the opposite direction the direction of beam scanning is reverse so that the volumetric region is scanned with image planes which are scanned from right to left. The reversal of the beam scanning direction causes the scanned planes to be substantially aligned, resulting in a reduction in scanning artifacts.11-27-2008
20120143059DYNAMIC APERTURE CONTROL AND NORMALIZATION FOR APODIZATION IN BEAMFORMING - A method of apodizing for ultrasound beamforming includes providing filtered digital channel data representing echo data from target tissue in a plurality (k) of data channels and a predefined number of active channels (N06-07-2012
20120245468ULTRASOUND DIAGNOSTIC APPARATUS AND METHOD OF PRODUCING ULTRASOUND IMAGE - An ultrasound diagnostic apparatus includes a region of interest setter which sets a region of interest on a B-mode image, a controller which performs transmission and reception of ultrasonic beams with forming transmission focuses at a plurality of points set on sound rays at a shallower position and a deeper position than the region of interest to acquire reception data for sound speed measurement, and a sound speed calculator which calculates an average local sound speed value in the region of interest on the basis of reception data for sound speed measurement.09-27-2012
20090112092APPARATUS AND METHOD OF ESTIMATING AND COMPENSATING A MOTION IN FORMING A SYNTHETIC IMAGE - The present invention relates to an apparatus for estimating and compensating a motion in forming an ultrasound synthetic image. The apparatus includes a transmit/receive control unit, an auto correlation unit and an image motion estimation and compensation unit. The transmit/receive control unit may set a plurality of scan lines, define sequential indices upon the scan lines, and set a transmit order of a transmit beam for the scan lines in a non-sequential manner in which increment and decrement of the indices of the scan lines are repeated. Then, the transmit/receive control unit may transmit the transmit beam to a target object based on the set transmit order to obtain a plurality of receive beams in response to each transmission of the transmit beam. The auto correlation unit may group the receive beams to an increment group corresponding to an increment direction and a decrement group corresponding to a decrement direction and perform auto correlation upon the receive beams. The auto correlation unit may apply weights to the auto correlation results and sum the weight-applied auto correlation results to there provide phase information. The image motion estimation and compensation unit may estimate and compensate a motion of a target object based on the phase information.04-30-2009
20090112091Portable ultrasound imaging data - A portable ultrasound imaging system includes a scan head coupled by a cable to a portable battery-powered data processor and display unit. The scan head enclosure houses an array of ultrasonic transducers and the circuitry associated therewith, including pulse synchronizer circuitry used in the transmit mode for transmission of ultrasonic pulses and beam forming circuitry used in the receive mode to dynamically focus reflected ultrasonic signals returning from the region of interest being imaged.04-30-2009
20090105592MULTI-STAGE DIGITAL ULTRASOUND BEAMFORMER - Elements in an ultrasound array are activated according to a transmit beamformer to create a series of transmit beams. For each transmit beam, the first stage of a receive beamformer determines a plurality of primary receive beams. A second beamformer stage then computes secondary receive beams as a function of the primary receive beams that correspond to return signals from different transmit beams to a common receive beam origin. For example, each secondary receive beam may be calculated as a function of the weighted, time-delayed sum of the primary receive beams. At least one of the secondary receive beams is then output from the beamformer to be used in creating a displayed image.04-23-2009
20110172537ULTRASOUND PROBE AND ULTRASOUND DIAGNOSTIC APPARATUS - The present embodiment relates to an ultrasound probe having a first ultrasound vibrator group and a second ultrasound vibrator group, comprising a plurality of matrix switches and an adder. The ultrasound probe has a mode to send ultrasound to a predetermined observation point within a subject by the first ultrasound vibrator group, and to receive ultrasound echoes reflected within the subject by the second ultrasound vibrator group. The plurality of matrix switches extract, based on the distance between the second ultrasound vibrator group and the observation point, a plurality of ultrasound echoes having substantially the same phase from a plurality of ultrasound echoes output by the second ultrasound vibrator group. The adder adds the plurality of ultrasound echoes extracted by the plurality of matrix switches for each of the matrix switches and outputs them.07-14-2011
20130144170METHOD FOR GENERATING ULTRASONIC IMAGE USING CONCAVE ARRAY - Provided is a method of producing an ultrasound image using a concave array, which includes locating a concave array having at least one ultrasound transducer on a cornea, generating an ultrasound image by using an ultrasound transmitted or received through the concave array, and displaying the generated ultrasound image, wherein a focusing point of the concave array is on a vitreous humor, thereby minimizing ultrasound refraction, minimizing a loss of ultrasound energy, and resultantly makes a posterior segment into an ultrasound image.06-06-2013
20110245676METHOD AND APPARATUS FOR ULTRASOUND SIGNAL ACQUISITION AND PROCESSING - The present disclosure relates to the measurement of acoustic noise during ultrasound imaging. In one embodiment, a receive beam is directed in a different direction from a transmit beam when an acoustic noise signal is being measured. When a tissue signal is being measured, the receive beam is directed in substantially the same direction as the transmit beam.10-06-2011
20110077522Ultrasonic diagnostic apparatus and method for operating the same - An ultrasonic diagnostic apparatus includes an ultrasonic probe and a processing device. The ultrasonic probe includes an array transducer having plural ultrasonic transducers for transmitting ultrasonic beams to an inside of a subject and receiving echo waves to output echo signals, and a first scan line data generator for focusing the echo signals received by each channel of the array transducer and generating two or more first scan line data after a transmission of the ultrasonic beams. A data set of the first scan line data is sent to the processing device. The processing device includes a second scan line data generator for synthesizing second scan line data from the two or more first scan line data concerning a same scan line and obtained from the transmissions in different directions, and an image generator for generating an ultrasonic image of the subject based on the second scan line data.03-31-2011
20110245677ULTRASOUND DIAGNOSTIC APPARATUS - An ultrasound diagnostic apparatus comprises: an ultrasound probe having a plurality of ultrasound transducers; an apparatus body which supplies analog drive signals to the ultrasound transducers and generates ultrasound images based on reception signals output from the ultrasound transducers; and a connection cable which connects the ultrasound probe and the apparatus body, the ultrasound probe comprising: a plurality of receiving circuits, each including a preamp which amplifies the reception signal output from one of the ultrasound transducers and an A/D converter which converts the amplified reception signal; and a time division unit which controls output of the reception signal to the apparatus body such that the drive signal supplied from the apparatus body and the reception signal output to the apparatus body after being converted to a digital signal by the receiving circuit are mutually time-divided and sent via the connection cable.10-06-2011
20090048517Ultrasonic diagnostic apparatus - An ultrasonic diagnostic apparatus includes a transducer array 02-19-2009
20100010351TIME OF FLIGHT ESTIMATION METHOD USING BEAMFORMING FOR ACOUSTIC TOMOGRAPHY - It is disclosed an acoustic tomography method to improve the time of flight estimation, said method comprising the steps of: sequentially triggering a set of N transmitters so as to generate a sequence of N acoustic waves through a volume being scanned; receiving each of said acoustic waves after transmission through said volume with a set of M receivers, which are called received signals; delaying by varying delays the N different said received signals that each receiver receives from the N different transmitters, and adding them together to form a new received signal, which is called transmit-beamformed signal for that receiver; delaying by varying delays the M different said transmit-beamformed signals for each receiver and adding them together at each receiver to form a new signal, which we call transmit-receive-beamformed signal.01-14-2010
20120245469FAR-FIELD AND NEAR-FIELD ULTRASOUND IMAGING DEVICE - Devices, systems, and methods for ultrasonically acquiring far-field and near-field images within a body are disclosed. An ultrasound imaging device adapted for insertion within a body includes a first ultrasonic sensor configured to transmit ultrasonic waves at a first frequency for acquiring far-field images within the body, and a second ultrasonic sensor configured to transmit ultrasonic waves at a higher frequency than the first frequency for acquiring near-field images within the body. The ultrasound imaging device can be connected to a control device and user interface for visualizing far-field and near-field images acquired by the ultrasonic sensors.09-27-2012
20120245467ULTRASOUND DIAGNOSTIC APPARATUS AND ULTRASOUND IMAGE PRODUCING METHOD - An ultrasound diagnostic apparatus includes a region-of-interest setting unit for setting a region of interest in a given region of a B mode image, a controller for controlling a transmission circuit and a reception circuit to transmit ultrasonic beams composed of fundamental waves having a first frequency with forming transmission focuses at a plurality of points set in and near the region of interest and receive ultrasonic echoes having a second frequency, which is a harmonic component of the fundamental waves, thereby to obtain reception data for measuring a sound speed, and a sound speed calculator for calculating ambient sound speeds at the points based on the obtained reception data for measuring a sound speed.09-27-2012
20120203110ULTRASOUND DIAGNOSTIC APPARATUS AND ULTRASOUND IMAGE PRODUCING METHOD - An ultrasound diagnostic apparatus includes a channel selector for selecting channels that are simultaneously available for reception from a plurality of channels of a transducer array, and a controller for controlling a transmission driver to sequentially transmit a plurality of ultrasonic beams having different frequencies corresponding to a plurality of measuring depth regions from the transducer array, controlling reception signal processors and an image producer to form a same frame by receiving ultrasonic echoes having a frequency corresponding to each of the plurality of measuring depth regions, and controlling the channel selector to increasingly reduce the number of channels simultaneously available for reception as a measuring depth in the plurality of measuring depth regions decreases.08-09-2012
20120203109ULTRASOUND DIAGNOSTIC APPARATUS AND ULTRASOUND IMAGE PRODUCING METHOD - An ultrasound diagnostic apparatus includes: a controller for controlling a transmission circuit and a reception circuit to obtain reception data for measuring a sound speed and to obtain first reception data for producing a B mode image; a sound speed map producer for producing a sound speed map for the inside of the region of interest based on the reception data for measuring a sound speed; and an image producer for producing a B mode image based on the first reception data for producing a B mode image and second reception data for producing a B mode image, the second reception data for producing a B mode image being reception data for measuring a sound speed obtained by transmitting and receiving ultrasonic beams with forming transmission focuses at points having a depth closest to the given depth on sound rays passing inside the region of interest.08-09-2012
20120302888ARRAY ULTRASOUND ENDOSCOPIC PROBE, A MANUFACTURE METHOD THEREOF AND A FIXING AND ROTATING DEVICE - This invention relates to a radial array ultrasound endoscopic probe and its manufacture method and a fixing and rotating device. The probe comprises: a metal cylinder located at the center; a plurality of piezoelectric elements which are cut from piezoelectric ceramic or single crystal rings and arranged around the metal cylinder, said piezoelectric elements and said metal cylinder being provided with a backing material layer for absorbing sound therebetween, said piezoelectric elements being covered with a matching material layer on the outer side thereof, and said piezoelectric elements are filled with decoupling material therebetween; a plurality of coaxial cables correspondingly connected with the plurality of piezoelectric elements; and a circular lattice in a gear shape which sleeves over said metal cylinder and functions to arrange and separate the coaxial cables. In the invention, the plurality of piezoelectric elements are directly cut out from the piezoelectric ceramic or single crystal ring, thus non-concentricity of arrays, misalignment of arrays at interface, the probe being liable to damage, disengagement and break-off, etc., that may arise from forcedly curling multiple lays of materials of a specific thickness, are avoided.11-29-2012
20100280379ULTRASONIC DIAGNOSTIC APPARATUS - An ultrasonic diagnostic apparatus in which an image generation time can be reduced and a frame rate can be improved even in a color mode in which a two-dimensional color Doppler image obtained due to Doppler effect is combined with a B-mode image. The ultrasonic diagnostic apparatus includes an ultrasonic probe, a transmission system signal processing unit for supplying drive signals to the ultrasonic probe to transmit pulse trains, each including plural pulses respectively having frequency components of orthogonal frequency division multiplexing waves orthogonal to one another and having different center frequencies from one another, in the same direction, and a reception system signal processing unit for pulse-compressing the plural pulses having different frequency components included in each reception signal outputted from the ultrasonic probe which has received the pulse trains from the same direction, and generating a B-mode image signal based on the compressed pulse.11-04-2010
20090118617Ultrasonographic Device And Ultrasonographic Method - In an ultrasonic imaging device having an image synthesizing unit, correlation between images to be synthesized is computed for balancing between an improvement in contrast resolution and an improvement in spatial resolution, and an amount of displacement between the images is computed. When the amount of displacement is large, the signals after envelop detection are synthesized. When the amount of displacement is small, RF signals are synthesized. Alternatively, the mixing frequency may be variable according to the amount of displacement, and the balance between an improvement in spatial resolution and that in contract resolution is achieved according to a degree of the positional displacement.05-07-2009
20110054325STEERING ANGLE ADJUSTMENT OF SCAN LINES USING VIRTUAL TRANSDUCER ELEMENTS IN AN ULTRASOUND SYSTEM - Embodiments forming an ultrasound image by adjusting a steering angle of scan lines using virtual transducer elements in an ultrasound system are disclosed herein. In one embodiment, a processing unit forms a first ultrasound image by using the ultrasound data, which may be acquired based on first scan lines steered at a first steering angle. The processing unit determines a center of the target object on the first ultrasound image. A control unit defines virtual transducer elements associated with an array transducer, defines second scan lines and computes a second steering angle of the second scan lines based on the virtual transducer elements and the center of the target object. An ultrasound data acquisition unit forms second ultrasound data based on the second scan lines steered at the second steering angle. The processing unit forms a second ultrasound image by using the second ultrasound data.03-03-2011
20110087104INTRAVASCULAR ULTRASOUND SYSTEM FOR CO-REGISTERED IMAGING - An intravascular ultrasound imaging system comprises a catheter having an elongated body having a distal end and an imaging core arranged to be inserted into the elongated body. The imaging core is arranged to transmit ultrasonic energy pulses and to receive reflected ultrasonic energy pulses. The system further includes an imaging engine coupled to the imaging core and arranged to provide the imaging core with energy pulses to cause the imaging core to transmit the ultrasonic energy pulses. The energy pulses are arranged in repeated sequences and the energy pulses of each sequence have varying characteristics. The reflected pulses may be processed to provide a composite image of images resulting from each different characteristic.04-14-2011
20100168579METHODS AND APPARATUS FOR HIGH SPEED IMAGE ACQUISITION RATES IN 3D MEDICAL IMAGING - Methods and apparatus for high speed image acquisition rates in medical imaging are provided. An embodiment includes scanning an R-theta sector slice, wherein R denotes radius of the sector and theta denotes angle of the sector; varying a value of each of phi and theta, such that phi denotes an elevation location of the R-theta slice, and theta is a function of phi; and, iterating the scanning, acquiring by this method at least one image at an improved acquisition rate compared to that of scanning methods using a constant value of theta.07-01-2010
20100168580HIGH SPEED ULTRASONIC THICK SLICE IMAGING - An ultrasonic diagnostic imaging system scans a plurality of planar slices in a volumetric region which are parallel to each other. Following detection of the image data of the slices the slice data is combined by projecting the data in the elevation dimension to produce a “thick slice” image. Combining may be by means of an averaging or maximum intensity detection or weighting process or by raycasting in the elevation dimension in a volumetric rendering process. Thick slice images are displayed at a high frame rate of display by combining a newly acquired slice with slices previously acquired from different elevational planes which were used in a previous combination. A new thick slice image may be produced each time at least one of the slice images is updated by a newly acquired slice. Frame rate is further improved by multiline acquisition of the slices.07-01-2010
20090171214ULTRASOUND SYSTEM AND METHOD OF FORMING ULTRASOUND IMAGE SIGNALS WITH MULTIPROCESSING - The present invention relates to an ultrasound system. The ultrasound system comprises: a probe for transmitting an ultrasound beam along a plurality of scan lines in a target object and output receive signals based on ultrasound echoes reflected from the target object; a beam forming unit for applying delays to the receive signals and sum the delayed receive signals to thereby form scan line signals corresponding to the respective scan lines; a multiprocessing unit including a plurality of processors, each being configured to individually process a part of the scan line signals to output sub-image signals, the multiprocessing unit being configured to synthesize the sub-image signals to output ultrasound image signals corresponding to one image frame; and an image processing unit for performing an image processing upon the ultrasound image signals for display.07-02-2009
20090171213LINEAR ARRAY ULTRASOUND TRANSDUCER WITH VARIABLE PATCH BOUNDARIES - An ultrasonic diagnostic imaging system has a two dimensional array arranged in multiple patches of multiple transducer elements. Each patch of transducer elements is coupled to a group of microbeamformer delay lines having outputs which can be coupled to a selected channel of a system beamformer, which beamforms the partially summed beams of each patch into a final beamformed signal. The ability to direct a delayed signal from a transducer element to a selected beamformer channel enables the patch boundaries to be changed as the aperture is translated across the array.07-02-2009
20100121193ULTRASONSOGRAPHIC DEVICE - A technique for providing an ultrasonographic device which can transmit and receive a signal by using a complementary code is provided. According to the technique, an output of a coded waveform generation unit 05-13-2010
20090112093ULTRASOUND DIAGNOSTIC DEVICE AND METHOD FOR FORMING SCAN LINE DATA - There is provided an ultrasound diagnostic device including receiving data a transmission lines between scan line data forming units and channels and a method of forming scan line data. The ultrasound diagnostic device includes a plurality of channels for providing receiving data and a scan line data forming unit including a plurality of sub-scan line data forming groups and a data summing unit, wherein the sub-scan line data forming group forms partial data of scan lines, and wherein the data summing unit forms scan line data of the scan lines by summing the partial data. The sub-scan line data forming group includes a plurality of sub-scan line data forming units for forming the partial data of the scan lines by using the receiving data and providing a transmission path of the receiving data, first data lines for transmitting the receiving data between at least one of the sub-scan data forming unit and the channels and second data lines for transferring the receiving data between the sub-scan line data forming units.04-30-2009
20100191115ULTRASOUND IMAGING SYSTEM AND METHOD - In one embodiment, a method of transmitting ultrasonic energy is provided. The method comprises steps of configuring a pulse generator for generating and supplying excitation signals, transmitting ultrasound energy, based on the excitation signals, into an image volume of interest and generating multiple transmit beam sets from at least one sector comprising plurality of beam positions grouped into plurality of sub sectors, each sub sector comprising at least one set of beam positions indexed sequentially based on a predetermined rotation and wherein each transmit beam set comprises multiple simultaneous transmit beams, the multiple simultaneous transmit beams being generated from beam positions with matching indexes in each sub sector and wherein at least a first transmit beam set and a last transmit beam set, in each sector, are not generated from neighboring beam positions.07-29-2010
20100022883ULTRASONIC DIAGNOSTIC APPARATUS - An ultrasonic diagnostic apparatus, even with a reduced circuit size, capable of securing image quality equal to that having a larger circuit size. The apparatus includes: a drive signal generating unit for supplying drive signals to selected ultrasonic transducers; a reception signal processing unit for processing reception signals outputted from ultrasonic transducers in a selected aperture; a control unit for controlling the drive signal generating unit such that ultrasonic beams are transmitted at plural times, and sequentially storing the reception signals obtained by ultrasonic transducers in plural different apertures receiving ultrasonic echoes generated by the ultrasonic beams transmitted at the plural times, in a memory; a reception beam former for performing reception focusing processing on the reception signals corresponding to the plural different apertures to generate sound ray signals; and an image signal generating unit for generating an image signal based on the sound ray signals.01-28-2010
20100016725MULTI-BEAM TRANSMIT ISOLATION - A method for isolating ultrasound transmit beams and reducing cross-transmit beam interference in a multi-beam system involves transmitting a first ultrasound beam at a first and second positive angle and transmitting a second ultrasound beam at a first and second negative angle. The method further involves receiving a first, second, third, and fourth composite signals, where each of the composite signals includes a return signal and a reflected component. The method further includes applying a finite impulse response filter to the first and third composite signals and the second and fourth composite signals to obtain an average of the first and second composite signals and an average of the second and fourth composite signals and remove the reflected components.01-21-2010
20100022882RECONFIGURABLE WIRELESS ULTRASOUND DIAGNOSTIC SYSTEM - An untethered ultrasound imaging system having selectable command control and wireless component connection and image transmission. Ultrasound data collected by the ultrasound system can be augmented with additional sensor data.01-28-2010
20090112094Phased Apply Ultrasound With Electronically Controlled Focal Point For Assessing Bone Quality Via Acoustic Topology And Wave Transmit Functions - A surface topology map technique and apparatus are disclosed for determining calcaneus thickness for imaging quantitative ultrasound measurements; improving measurement accuracy, particularly in in vivo applications.04-30-2009
20130197366SYSTEMS AND METHODS FOR INTRAVASCULAR ULTRASOUND IMAGING - Embodiments of catheters, imaging systems and methods for intravascular ultrasound imaging are presented. At least one miniaturized transducer element adapted to be inserted into a vascular structure and configured to produce signals for use in generating one or more ultrasound images of a desired region within the vascular structure is used. Further, one or more apodizing structures operably coupled to the transducer element and configured to decrease the responsiveness of the transducer element at one or more boundaries of the transducer element with respect to the center of the transducer element are used. Particularly, the apodizing structures reduce sidelobe amplitude of an ultrasound beam profile in the region of interest, thereby generating improved ultrasound images.08-01-2013
20110021921ULTRASOUND DIAGNOSTIC APPARATUS - A 2D array transducer 01-27-2011
20120310096ULTRASOUND PROBE AND ULTRASOUND DIAGNOSIS APPARATUS - To be able to control an aperture in ultrasound transducer units comprised such that the signals from a plurality of ultrasound transducers are added and output. An ultrasound probe comprising a plurality of ultrasound transducers, a plurality of delay circuits, and an adder circuit, and configured to be able to control a reception aperture of ultrasound waves. The delay circuit performs a delay processing to reception signals. The adder circuit adds and outputs the reception signals for each predetermined group. The ultrasound probe further comprises a gate means. The gate means switches connection and disconnection of the signal path for each signal path arranged between the ultrasound transducer and the adder circuit. The gate means also connects only the signal path from the ultrasound transducer corresponding to the initial reception aperture that is previously set after the transmission of ultrasound waves within the cycle of the ultrasound waves and sequentially connects the corresponding signal path from the ultrasound transducer that is closer to the initial reception aperture according to the lapse in time of the reception period.12-06-2012
20120310095ULTRASOUND DIAGNOSTIC APPARATUS AND ULTRASOUND IMAGE PRODUCING METHOD - An ultrasound diagnostic apparatus includes reception signal processors having an A/D conversion executable range narrower than an amplitude range of reception signals obtained from an entire depth of a measurement region; and a controller for dividing the measurement region into a plurality of measurement depth zones each allowing reception signals within an amplitude range narrower than the A/D conversion executable range of the reception signal processors, controlling a transmission driver so that transmission of an ultrasonic beam from the array transducer may be performed plural times corresponding to the measurement depth zones, and controlling the reception signal processors so that reception data associated with each measurement depth zone may be acquired based on the ultrasonic beam as transmitted corresponding to the relevant measurement depth zone.12-06-2012
20120157851CLUTTER SUPPRESSION IN ULTRASONIC IMAGING SYSTEMS - A method of ultrasound imaging is provided herein. The method includes the following stages: transmitting ultrasound radiation towards a target and receiving reflections of the ultrasound radiation from a region of the target in a main reflected signal and one or more auxiliary reflected signals, wherein each one of the reflected signals comprises an input dataset and is associated with a beam with a different and distinct beam pattern; compounding the input datasets from the main reflected signal and one or more auxiliary reflected signals, by the use of a compounding function, said compounding function using parameters derived from spatial analysis of the input datasets.06-21-2012
20120108975MULTI-HEADED IMAGING PROBE AND IMAGING SYSTEM USING SAME - A diagnostic imaging system is provided that includes an image acquisition component, a transmitter operatively coupled to the image acquisition component to transmit a signal therefrom, and a beamformer operatively coupled to the image acquisition component to receive image data therefrom. Also included is a processor configured to assemble images from the acquired image data and a display configured to display the images. The image acquisition component includes a multi-headed probe that has a plurality of transducers configured to permit a change of active transducers during an imaging session without a change of the image acquisition component.05-03-2012
20120130246METHOD AND SYSTEM FOR CORRECTING ULTRASOUND DATA - A method for correcting ultrasound data includes acquiring ultrasound data using an ultrasound probe having a plurality of transducer elements associated with a plurality of channels that include conductive pathways and communicating the ultrasound data as received ultrasound signals along the conductive pathways of the channels. The method further includes determining a crosstalk signal that is generated in one or more of the channels by at least one of communication of the received ultrasound signals along the channels or vibration of one or more of the transducer elements. In one aspect, the method also includes modifying one or more subsequently acquired ultrasound signals that are communicated along the channels based on the crosstalk signal.05-24-2012
20120232397ULTRASOUND PROBE AND ULTRASOUND DIAGNOSTIC APPARATUS - The ultrasound probe includes a first priority setting unit which sets a priority regarding which of temporal resolution and spatial resolution is given preference, and a measurement parameter setting unit which sets values of measurement parameters relating to the temporal resolution and the spatial resolution in accordance with the priority set by the first priority setting unit and a measurement depth set in advance such that power consumption falls within the allowable power consumption.09-13-2012
20110184292ULTRASOUND IMAGE ENHANCEMENT IN AN ULTRASOUND SYSTEM - Embodiments for spatially compounding ultrasound images for removing seam artifact in an ultrasound system are disclosed. In one embodiment, the ultrasound system includes: an ultrasound data acquisition unit configured to transmit ultrasound beams to a target object, receive ultrasound echoes reflected from the target object and provide a plurality of ultrasound frame data sets for a plurality of frames, said plurality of ultrasound frame data being acquired at different steering angles of scan lines; and a processing unit configured to form a plurality of ultrasound images and form a plurality of mask images corresponding to the respective ultrasound images based on the plurality of ultrasound frame data sets for removing seam artifact and spatially compound the plurality of ultrasound image based on the plurality of mask images to form an ultrasound spatial compound image.07-28-2011
20100174194ULTRASOUND 3D IMAGING SYSTEM - The present invention relates to an ultrasound imaging system in which the scan head either includes a beamformer circuit that performs far field subarray beamforming or includes a sparse array selecting circuit that actuates selected elements. When used with second stage beamforming system, three dimensional ultrasound images can be generated.07-08-2010
20120316443ULTRASOUND PROBE - An ultrasound probe includes a receiving section to receive ultrasound waves from an object and to acquire a receiving signal of each of multiple channels; a beam forming section to adjust a phase of the receiving signal of each of multiple channels and to sum the receiving signals; an image producing section to produce image data to display an ultrasound diagnostic image based on the receiving signals summed by the beam forming section; a transmission target selecting section to select one from at least two of the receiving signal for each of multiple channels, the receiving signals summed by the beam forming section, and the image data as a transmission target; and a transmitting section to transmit the transmission target selected by the transmission target selecting section.12-13-2012
20100298707PULSE OFFSET ULTRASONIC IMAGING - A diagnostic ultrasound image of a region of interest (ROI) of a body is formed by transmitting into the ROI at least a first and a second ultrasound pulse, in which the second pulse is phase-shifted relative to the first pulse by an amount other than 0 or 180 degrees. Discretized receive signals from the pulses are interleaved to form a resultant operating signal that is detected and beamformed as the operating signal.11-25-2010
20120179044ULTRASOUND 3D IMAGING SYSTEM - The present invention relates to an ultrasound imaging system in which the scan head includes a beamformer circuit that performs far field subarray beamforming or includes a sparse array selecting circuit that actuates selected elements. When using a hierarchical two-stage or three-stage beamforming system, three dimensional ultrasound images can be generated in real-time. The invention further relates to flexible printed circuit boards in the probe head. The invention furthermore relates to the use of coded or spread spectrum signalling in ultrasound imaging systems. Matched filters based on pulse compression using Golay code pairs improve the signal-to-noise ratio thus enabling third harmonic imaging with suppressed sidelobes. The system is suitable for 3D full volume cardiac imaging.07-12-2012
20120179043SUBJECT DIAGNOSIS SYSTEM, MEDICAL IMAGE SYSTEM FOR PROVIDING DIAGNOSIS IMAGE OF SUBJECT, AND METHOD OF DISPLAYING DIAGNOSIS IMAGE OF SUBJECT - A diagnosis system, a medical image system, and a method of displaying a diagnosis image are provided. The diagnosis system includes a probe including a plurality of sub-arrays, each of the sub-arrays including at least one line of array transducers, the array transducers being configured to transmit and receive signals to and from a subject being diagnosed, and a hybrid beamformer configured to perform analog beamforming in a direction in which the sub-arrays are arranged, and perform digital beamforming in a direction perpendicular to the direction in which the sub-arrays are arranged.07-12-2012
20120253198ULTRASOUND IMAGING APPARATUS - Ultrasound imaging apparatus including a two-dimensional array of plural transducer elements distributed two-dimensionally and transmits and receives ultrasonic waves while scanning an area to be imaged to create an ultrasound three-dimensional image. Transducer elements are divided into plural element blocks including a first element block of which a size in a second direction of an arrangement surface of the two-dimensional array is larger than a size in a first direction of the surface, and a second element block of which a size in the first direction is larger than a size in the second direction. Each of the element blocks is divided into a predetermined number of groups to form a transmit beam and plural receive beams in the area to be imaged. Further included is a selecting means for making transmit/receive channels of the transducer elements grouped to be one channel in each of the groups.10-04-2012
20120259226ULTRASOUND DIAGNOSTIC APPARATUS - An ultrasound diagnostic apparatus comprises: an ultrasound probe, the ultrasound probe having a transducer array which transmits ultrasonic waves, receives an ultrasonic echo reflected by a subject, and outputs a reception signal according to the received ultrasonic waves, a signal processor which includes a reception amplifier having an amplifier amplifying the reception signal output from the transducer array and processes the reception signal, a selection unit for switching a current value of a bias current supplied to the amplifier, and a selection switch which performs a switching operation to switch the current value by the selection unit; and a diagnostic apparatus body which produces an ultrasound image according to the reception signal processed by the signal processor of the ultrasound probe.10-11-2012
20120232396ULTRASOUND DIAGNOSTIC APPARATUS - The ultrasound probe transmits and receives ultrasonic waves in different directions and the diagnostic apparatus body combines a plurality of images captured in the different directions of transmission and reception to produce an ultrasound image. In this process, the ultrasound diagnostic apparatus measures the temperature of the ultrasound probe to change the ultrasound transmission and reception for producing a composite ultrasound image or makes the directions of transmission and reception in the last ultrasound image in one composite ultrasound image coincide with those in the first ultrasound image in its temporally adjacent composite ultrasound image. The ultrasound diagnostic apparatus thus enables consistent ultrasound diagnosis against heat generated in the integrated circuit board of the ultrasound probe while simplifying the control of the ultrasound transmission and reception.09-13-2012
20100228130PORTABLE ULTRASOUND IMAGING SYSTEM - A portable ultrasound imaging system includes a scan head coupled by a cable to a portable battery-powered data processor and display unit. The scan head enclosure houses an array of ultrasonic transducers and the circuitry associated therewith, including pulse synchronizer circuitry used in the transmit mode for transmission of ultrasonic pulses and beam forming circuitry used in the receive mode to dynamically focus reflected ultrasonic signals returning from the region of interest being imaged.09-09-2010
20120101386Ultrasound Scanning Capsule Endoscope (USCE) - The present invention relates to ultrasound imaging on a capsule endoscope platform. It relates to the generation of a focused ultrasound acoustic signal and the receiving of echo signals from the wall of a body lumen with an array of acoustic transducers wrapped around the circumference of the capsule. It relates to sending the generated echo image signals to receiver devices attached or worn on the body. It relates to the generation of 360° overlapping sidewall ultrasound scans of a body lumen, and image processing techniques to assemble these scans into a high resolution continuous ultrasound image. Finally, it relates to the manufacture and assembly of such an ultrasound scanning capsule endoscope (USCE). The concept is extendable to conventional endoscopes and catheters.04-26-2012
20120289835SYSTEMS AND METHODS FOR BEAM ENHANCEMENT - Beam enhancement through sidelobe reduction and/or mainlobe sharpening is shown. Embodiments utilize dynamic resolution, improved dynamic resolution, and/or enhanced dynamic resolution techniques to synthesize beams, such as ultrasonic beams used in ultrasonic imaging, having desired attributes. Embodiments simultaneously form a first sample beam and a second or auxiliary sample beam for every sample to synthesize enhanced scan beams. According to a dynamic resolution techniques herein a new beam may be formed from the sum of the two sample beams. A synthesized dynamic resolution beam of embodiments has reduced sidelobes with relatively little or no spread of the mainlobe. An enhanced dynamic resolution beam sharpening function can be applied to provide a further enhanced beam, such as to further narrow the mainlobe.11-15-2012
20080255454SYSTEM OF FORMING ULTRASOUND IMAGE AND METHOD OF FORMING SCAN LINE DATA - There are provided an ultrasound imaging system and a method of forming a plurality of scan lines and frames by using receiving signals provided by transducers in a probe. Main scan lines, which are selected among the scan lines and supplement scan lines determined with the others, are assigned to each scan line data forming unit in the ultrasound imaging system. A partial data of the main scan line and a first supplement data of the supplement scan line are formed with receive data obtained from receive signals from at least one transducer. A second supplement data provided from other scan line data forming units is applied to the partial data of the main scan line to form a scan line data of the main scan line.10-16-2008
20080242992Ultrasound Imaging System and Method for Flow Imaging Using Real-Time Spatial Compounding - A method for reducing speckle in an ultrasound image includes generating a transmit scan beam from a single aperture defined on a face of a transducer element array, such that the transmit scan beam originates from the single aperture, generating a first set of ultrasound response scan beams, originating from a first receive aperture, defined as a first set of transducer elements symmetrically across the center of the transmit aperture, generating at least a second set of ultrasound response scan beams, originating from at least a second receive aperture contiguous with the first receive aperture. The at least second receive aperture is defined by at least a second set of transducer elements disposed symmetrically across the center of the transmit aperture. The response scan beams are received simultaneously by the first and the at least second receive apertures, and compounded.10-02-2008
20080234585ULTRASOUND DIAGNOSTIC APPARATUS AND METHOD FOR ACQUIRING ULTRASOUND DATA - An ultrasound diagnostic apparatus including oscillation elements configured to transmit toward and receive from a region of a subject, a receiving delay setting unit configured to divide the oscillation elements into oscillation element groups and set a common delay to oscillation elements included in each of the oscillation element groups in accordance with an imaging condition, an adding unit configured to add received signals transmitted from the oscillation elements in accordance with the delay set by the received delay setting unit, and an image generating unit configured to generate image data in accordance with received signal added by adding unit.09-25-2008
20110237950METHOD AND APPARATUS FOR MULTI-BEAM BEAMFORMER BASED ON REAL-TIME CALCULATION OF TIME DELAY AND PIPELINE DESIGN - A multi-beamforming method based on real-time calculation of delay parameter and pipeline technique and an apparatus there of are disclosed. The system separates the parameters that should be calculated in real time from the parameters that does not require real-time calculation, and separates the parameters related to the beam sequencing number and the parameters that are independent of the beam sequencing number, and provides a real-time delay calculation unit that is adapted to different types of probe by means of simple switching. The calculation unit utilizes the pipeline design, the delay parameters of M number of beams are calculated in the calculation unit in pipeline manner, and then the memory of the same channel echo data is read, so that the delay of the beams is realized. The consumption of the FPGA resource is greatly reduced. The present invention enables high delay precision through direct calculation. In order to reduce the occupation of the hardware resource, the present invention uses the pipeline design to allow M number of beams to share the delay parameter calculation unit. The occupation of the hardware resource is greatly reduced accordingly.09-29-2011
20130172752ULTRASOUND TRANSDUCER APPARATUS AND ULTRASOUND IMAGING SYSTEM AND IMAGING METHOD - An ultrasound transducer apparatus includes an ultrasound transducer array consisting of multiple ultrasound transducer elements. The ultrasound transducer array is adapted for receiving and transmitting an ultrasound wave. A pulse controller is adapted for outputting multiple pulse signals to control the ultrasound transducer elements, respectively. By delaying output of the pulse signals, a plane wavefront of a transmitted ultrasound is controlled to have a different propagation direction. The pulse controller is able to activate part of the ultrasound transducer elements, corresponding to a region of interest for ultrasound wave receiving and transmitting.07-04-2013
20130137986ULTRASOUND DIAGNOSTIC IMAGING APPARATUS - Disclosed is an ultrasound diagnostic imaging apparatus including an ultrasound probe which outputs a transmission ultrasound wave toward a subject due to a driving signal and which outputs a received signal by receiving a reflection ultrasound wave from the subject, a transmitting unit which makes the ultrasound probe generate the transmission ultrasound wave by outputting each of a first transmission signal, a second transmission signal, a third transmission signal and a fourth transmission signal as the driving signal, and a signal component extraction unit which extracts a higher harmonic component and a difference frequency component by compounding a first received signal, a second received signal, a third received signal and a fourth received signal.05-30-2013
20130102903ULTRASONIC DIAGNOSTIC APPARATUS, MEDICAL IMAGE PROCESSING APPARTUS, AND MEDICAL IMAGE PROCESSING METHOD - According to one embodiment, a position detection unit detects position information of an ultrasonic probe including ultrasonic transducers, with reference to a reference position. A transmission/reception unit supplies a driving signal to each transducer and generates a reception signal based on a reception echo signal generated by the transducer. Based on the reception signal, a three-dimensional data generation unit generates first three-dimensional data, in which a region corresponding to a living body tissue is specified by a specifying unit. A setting unit sets a first viewpoint based on the position information and specified region. An image generation unit generates a rendering image by rendering processing using the first viewpoint and first three-dimensional data.04-25-2013
20130102904ULTRASONIC DIAGNOSTIC DEVICE AND PROGRAM - An ultrasound diagnostic device has a control unit (04-25-2013
20130158403Method for Obtaining a Three-Dimensional Velocity Measurement of a Tissue - A method for obtaining a three-dimensional velocity measurement of a tissue from an ultrasound device comprising generating a set of correlation-velocity transfer functions from a first image plane and a second image plane, each image plane characterizing the tissue, wherein the set of correlation-velocity transfer functions can be applied to situations of constant ultrasound beam profile and/or periodic flow patterns; collecting, using the ultrasound device, an ultrasound measurement image; determining a set of in-plane velocity vectors and a set of speckle correlation values mapped to the ultrasound measurement image; determining a set of out-of-plane velocity vectors, corresponding to the set of in-plane velocity vectors, by applying the set of correlation-velocity transfer functions to the set of speckle correlation values; and generating, for the ultrasound measurement image, a three-dimensional velocity measurement from the sets of in-plane and out-of-plane velocity vectors.06-20-2013
20080200809ULTRASOUND TRANSMIT BEAMFORMER INTEGRATED CIRCUIT AND METHOD - The invention provides a novel method of transmit beamforming, which allows compact analog implementation of complex digital algorithms without compromising their features. It is aimed to support envelope shaping, apodization, and phase rotation per channel and per firing. Each of three embodiments represents a complete transmit channel driven by pulse-width modulated (PWM) waveforms stored in a conventional sequence memory. PWM signals controls the transmit pulse envelope (shape) by changing the duty cycle of the carrier. Beamformation data are loaded prior to a firing via serial interface. Under the direction of a controller, the circuitry allows high precision (beyond sampling rate) phase rotation of the carrier. It also provides transmit apodization (aperture weighting), which maintains an optimal trade-off among low sidelobe level and widening of the mainlobe. Implementing such an IC, the manufacturing cost of a high-end ultrasound system can be reduced. Equally, the proposed solution makes the benefits of digital transmit beamformers available to midrange and entry-level machines since it merely requires a modified programming of the sequence memory.08-21-2008
20130150721ULTRASOUND DIAGNOSTIC APPARATUS AND ULTRASOUND DIAGNOSTIC APPARATUS CONTROL METHOD - An ultrasonic diagnostic apparatus according to the present invention is an apparatus to which a probe with transducers is connectible. The apparatus includes a controller 06-13-2013
20130131516ULTRASOUND DIAGNOSTIC APPARATUS AND ULTRASOUND DIAGNOSTIC METHOD - An ultrasound diagnostic apparatus includes: an ultrasound probe including a plurality of ultrasound transducers; a device for determining optimum sound speed values at a lattice point set in a shallower region than a region of interest (ROI) and in the ROI on the basis of an ultrasound detection signal outputted by the ultrasound probe; a device for arithmetically operating a received wave received from the ROI on the basis of the optimum sound speed value; a device for setting an assumed sound speed in the region of interest, obtaining a received wave received from each lattice point on the basis of the assumed sound speed and the optimum sound speed value at the lattice point, and synthesizing received waves at lattice points to obtain a resultant received wave; and a device for determining a local sound speed value in the ROI on the basis of the received wave and the resultant received wave.05-23-2013
20130131515FIXED FOCUS TRANSDUCER ARRAY AND ULTRASONIC WAVE TRANSCEIVING APPARATUS USING THE SAME - There are provided a fixed focus transducer array and an ultrasonic wave transceiving apparatus using the same. The fixed focus transducer array includes: a plurality of transducers, transducing electrical signals into ultrasonic signals to thereby focus the ultrasonic signals on a single focal point and transducing reflected ultrasonic signals from the single focal point into electrical signals to thereby output the electrical signals, wherein the plurality of transducers are disposed to be symmetrical to each other based on one transducer and simultaneously focus the ultrasonic signals on the single focal point at speeds according to the respective natural frequencies thereof. Therefore, a circuit area is reduced, whereby miniaturization may be implemented and a processing speed may be increased.05-23-2013
20100041995ULTRASONIC DIAGNOSTIC APPARATUS - An object of the invention is to provide an ultrasonic diagnostic apparatus that can scan a region of interest at high speed and other regions at low speed.02-18-2010
20120283567ULTRASONIC DIAGNOSTIC APPARATUS AND MEASUREMENT-POINT TRACKING METHOD - An ultrasonic diagnostic apparatus provided with a measurement position setting unit configured to set a region of interest in the cardiac muscle in the ultrasonic image displayed on the display unit, a tracking calculation unit configured to track the movement of the cardiac muscle at a plurality of measurement points in the region of interest, and a physical quantity calculating unit configured to calculate a specific physical quantity on the basis of the results of the tracking. The calculated specific physical quantity is displayed on the display unit. The tracking calculation unit tracks the measurement points using a plurality of first segmenting lines along the epicardium and the endocardium of the cardiac muscle and a plurality of second segmenting lines that are orthogonal to the second segmenting lines.11-08-2012
20120283566SYSTEM AND METHOD FOR IMAGING A VOLUME OF TISSUE - The system of one embodiment for imaging tissue includes ultrasound emitters configured to surround and emit acoustic waveforms toward the tissue, ultrasound receivers configured to surround and receive acoustic waveforms scattered by the tissue, and a processor configured for determining an observed differential time-of-flight (ToF) dataset and generating an acoustic speed rendering of the tissue based on the observed differential ToF dataset. The method of one embodiment for imaging tissue includes receiving data representative of acoustic waveforms scattered by the tissue, determining an observed differential ToF dataset, performing forward modeling to generate a calculated differential ToF dataset based on an acoustic speed model, performing inverse modeling to generate an acoustic speed model based on the observed and calculated differential ToF datasets, iteratively repeating forward modeling and inverse modeling until convergence is met with a final acoustic speed model, and generating an acoustic speed rendering from the final acoustic speed model.11-08-2012
20120283568Coherent Image Formation for Dynamic Transmit Beamformation - Using parallel receive beamformation, sets of data representing locations in at least a common field of view are obtained, each set in response to a transmit with a spatially distinct phase front. The common field of view receive data are time aligned and amplitude weighted for retrospective transmit focusing and retrospective transmit apodization, respectively. A time offset is applied to the receive data for retrospective transmit focusing. The offset is selected to emulate shifting the transmit delay profile to be tangentially intersecting with the dynamic receive delay profile for each location which is the desired transmit delay profile. A weight is applied to the receive data for retrospective transmit apodization. The offset and weighted data representing a same location from different transmit events is coherently combined. The number of sets of data offset, weighted and combined may vary as a function of depth for dynamic transmit beamformation.11-08-2012
20130158404SYSTEM AND METHOD FOR THREE-DIMENSIONAL ULTRASOUND IMAGING - Under one aspect, an ultrasound system for producing a representation of an object includes: a concave transducer array configured to transmit ultrasonic pulses into the object and to receive ultrasonic pulses from the object, the ultrasonic pulses from the object containing structural information about the object, each transducer in the array generating an output signal representative of a portion of the structural information about the object; a multi-focal lens structure for focusing the transmitted ultrasonic pulses; a multiplexing structure in operable communication with the concave transducer array and including logic for coupling the output signals from at least one pair of transducers in the concave transducer array; and a beamformer in operable communication with the multiplexing structure and including logic for constructing a representation of structural information about the object based on the coupled output signals from the multiplexing structure.06-20-2013
201301584053D View of 2D Ultrasound Images - A method includes generating a single three dimensional perspective or axonometric image based on at least two two-dimensional intersecting scanplanes. A rendering engine includes a view processor that generates a single three dimensional perspective image based on at least two two-dimensional intersecting scanplanes. An ultrasound imaging system includes a transducer array, including at least two one dimensional transducer arrays, each receiving echoes corresponding to different intersecting scanplanes, a scan converter that scan converts the echoes into a format for display on a monitor, and a view processor that combines the intersecting scanplanes to form a single three dimensional perspective image.06-20-2013
20110282209ULTRASOUND OBSERVATION APPARATUS AND CONTROL METHOD OF ULTRASOUND OBSERVATION APPARATUS - An ultrasound observation apparatus of the invention includes: an ultrasound probe portion capable of two-dimensional scanning of an ultrasound beam; a transmission/reception control section for controlling a transmission/reception direction of the ultrasound beam by the ultrasound probe portion; a B-mode image calculation section for generating a B-mode image on a scanning plane based on a result of scanning of the ultrasound beam; a storage section for storing a predetermined sample image determined according to a shape of a treatment instrument in a case where a central axis of the treatment instrument for performing a treatment on a subject and the scanning plane agree with each other; and a correlation calculation section for calculating a correlation value between the B-mode image and the sample image, wherein the transmission/reception control section moves the scanning plane such that the correlation value becomes the maximum.11-17-2011
20130123635SPREAD SPECTRUM CODED WAVEFORMS IN ULTRASOUND IMAGING - Techniques, systems, and devices are disclosed for ultrasound imaging using spread spectrum, coherent, frequency- and/or phase-coded waveforms. In one aspect, a method of creating an image from an acoustic waveform in an acoustic imaging device includes setting the device into a transmit mode to transmit an acoustic waveform toward a target, in transmitting the acoustic waveform, synthesizing, in one or more waveform synthesizers, a plurality of substantially orthogonal coded waveforms that form a composite waveform as the transmitted acoustic waveform toward the target, in which each waveform corresponds to a distinct frequency band, setting the device into a receive mode to receive a returned acoustic waveform that returns from at least part of the target, converting the received returned acoustic waveform from analog format to digital format as a received composite waveform comprising information of the target, and processing the received composite waveform to produce an image of the target.05-16-2013
20130190625ULTRASONIC DIAGNOSTIC APPARATUS, PHASE SHIFT TRANSMISSION/RECEPTION CONTROL METHOD, AND ULTRASONIC PROBE - According to one embodiment, an ultrasonic probe has a laminated structure of an acoustic matching layer, transducer layer with arrayed transducers, and backing layer. A transmission/reception unit transmits and receives ultrasonic waves to and from an object via the transducers. A control unit controls the transmission/reception unit to synchronize ultrasonic-wave generation by a specific transducer of the transducers with ultrasonic-wave reception by a different transducer. A phase shift detection unit detects a phase shift between an output signal from the transmission/reception unit and a reference signal, the output signal corresponding to synchronization between the ultrasonic-wave generation and the ultrasonic-wave reception.07-25-2013
20110319764ULTRASONIC DIAGNOSIS APPARATUS - The ultrasonic diagnosis apparatus according to the embodiments transmits ultrasonic waves to a subject, generates an ultrasound image based on the signals received from the subject, and comprises sub arrays, a main array, an aperture diameter setting part, and a delay pattern setting part. The sub arrays consist of a plurality of ultrasound transducers that are two-dimensionally disposed, and have a fixed delay pattern during a single receiving period. The main array consists of sub arrays. The aperture diameter setting part sets the aperture diameter of the main array. The delay pattern setting part changes the delay pattern for each of the sub arrays depending on the aperture diameter.12-29-2011
20120289834ULTRASOUND DIAGNOSTIC APPARATUS AND ULTRASOUND IMAGE PRODUCING METHOD - An ultrasound diagnostic apparatus includes reception signal processors for amplifying reception signals outputted from a transducer array having received an ultrasonic echo from a subject and then A/D-converting the amplified reception signals to obtain reception data, the reception signal processors having an A/D conversion executable range where A/D conversion of the reception signals is possible, and a controller for controlling the reception signal processors to limit an A/D conversion execution range where A/D conversion is actually executed within the A/D conversion executable range according to amplitudes of the reception signals outputted from the transducer array.11-15-2012
20120029358Three -Dimensional Ultrasound Systems, Methods, and Apparatuses - In part, the invention relates to an immersible ultrasound probe having a substantially cylindrical shape and a circular or elliptical cross-section. Typically, the circumference of the probe and the length of the cylinder define an inner surface upon which rows and/or columns of transducer are disposed. This surface can also be formed from panels or modules. The transducers can be formed in unitary substrate and electrical connected to a MEMs device and a multiplexer. The inner surface defines a cavity having at least one opening sized to receive a body object. The inner surface configured to receive acoustic signals while immersed in a fluid.02-02-2012
20120029357ULTRASOUND 3D IMAGING SYSTEM - The present invention relates to an ultrasound imaging system in which the scan head either includes a beamformer circuit that performs far field subarray beamforming or includes a sparse array selecting circuit that actuates selected elements. When used with second stage beamforming system, three dimensional ultrasound images can be generated.02-02-2012
20120095344TRANSMIT BEAMFORMING IN 3-DIMENSIONAL ULTRASOUND - An ultrasound system comprises a probe including a two-dimensional (2D) array of transducer elements that form an aperture having a plurality of receive elements that are configured to receive ultrasound signals. The transducer elements form at least one transmit sub-aperture that is configured to be interconnected with a fixed group of the transducer elements within the aperture. Transmitters generate electrical transmit signals, and at least one transmit sub-aperture processor (tx SAP) maps the transducer elements within the fixed group of the transducer elements to the transmitters in a transmit configuration based on a beam steering direction.04-19-2012
20120095343Concave Ultrasound Transducers and 3D Arrays - A Multiple Aperture Ultrasound Imaging (MAUI) probe or transducer is uniquely capable of simultaneous imaging of a region of interest from separate apertures of ultrasound arrays. Some embodiments provide systems and methods for designing, building and using ultrasound probes having continuous arrays of ultrasound transducers which may have a substantially continuous concave curved shape in two or three dimensions (i.e. concave relative to an object to be imaged). Other embodiments herein provide systems and methods for designing, building and using ultrasound imaging probes having other unique configurations, such as adjustable probes and probes with variable configurations.04-19-2012
20120095342PROVIDING AN ULTRASOUND SPATIAL COMPOUND IMAGE BASED ON CENTER LINES OF ULTRASOUND IMAGES IN AN ULTRASOUND SYSTEM - Embodiments for providing an ultrasound spatial compound image are disclosed. In one embodiment, by way of non-limiting example, an ultrasound system comprises: an ultrasound data acquisition unit configured to acquire ultrasound data by transmitting and receiving ultrasound signals; and a processing unit in communication with the ultrasound data acquisition unit, the processing unit being configured to set a plurality of center lines based on a virtual common point corresponding to predetermined scan-lines, move the virtual common point along each of the center lines to set a plurality of scan-lines, form a plurality of ultrasound images corresponding to the center lines based on the ultrasound data, and perform spatial compounding upon the ultrasound images to form an ultrasound spatial compound image, wherein the ultrasound data acquisition unit is configured to acquire the ultrasound data based on the plurality of scan-lines.04-19-2012

Patent applications in class Electronic array scanning