| HITACHI MEDICAL CORPORATION Patent applications |
| Patent application number | Title | Published |
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| 20120136250 | ULTRASONIC DIAGNOSTIC DEVICE - In a radiation-pressure elastography technique for transmitting a ultrasound focused beam into a test object body and diagnosing the hardness thereof, it is required to consider high sensitivity and safety. | 05-31-2012 |
| 20120130245 | ULTRASONIC DIAGNOSTIC APPARATUS AND REGION-OF-INTEREST - Disclose is an ultrasonic diagnostic apparatus which transmits/receives an ultrasonic wave to/from a region including a carotid artery of an object, images an ultrasonic image, and comprises a thickness measurement unit configured to measure the thickness of an intima-media complex from the ultrasonic image, the ultrasonic diagnostic apparatus being provided with a region-of-interest setting unit configured to scan the ultrasonic image and set a region of interest including the intima-media complex on the ultrasonic image on the basis of the degree of concentration of contour slate points of the carotid artery, wherein the thickness measurement unit measures the thickness of the intima-media complex on the basis of boundaries within the set region of interest. | 05-24-2012 |
| 20120123268 | ULTRASOUND PROBE AND ULTRASOUND IMAGING DEVICE - Spurious response resulting from a high-order vibration mode that occurs when the cell shape of a capacitive micro-machined ultrasonic transducer is anisotropic is reduced. Assuming that a ratio between a long direction (l) and a short direction (w) of a diaphragm forming a capacitive micro-machined ultrasonic transducer is a representative aspect ratio (l/w), the representative aspect ratio is set to a value at which a dip of 6 dB or greater would not be formed within a transmit and receive bandwidth of a probe. Alternatively, the representative aspect ratio is so set that there would be six or more vibration modes for which the value obtained by dividing the frequency of a vibration mode having an odd number of anti-nodes by a fundamental mode frequency would be 2 or less. | 05-17-2012 |
| 20120123263 | ULTRASONIC DIAGNOSTIC APPARATUS AND ULTRASONIC MEASUREMENT METHOD - Disclosed are an ultrasonic diagnostic apparatus and an ultrasonic measurement method enabling easy acquisition of elasticity information by means of a shear wave. | 05-17-2012 |
| 20120113759 | ULTRASONIC DIAGNOSTIC APPARATUS AND METHOD THEREOF - An ultrasonic diagnostic apparatus characterized by comprising, a probe which has a transducer and which transmits and receives ultrasonic waves, an ultrasonic diagnostic apparatus main body; and a cable through which signals are transmitted and received between the ultrasonic diagnostic apparatus main body and the probe, wherein the probe includes a transmission signal generator that generates an ultrasonic transmission signal, a transmission circuit that amplifies the generated transmission signal, and a transmission phasing circuit that adjusts the timing of the transmission signal. | 05-10-2012 |
| 20120112745 | MAGNETIC RESONANCE IMAGING APPARATUS AND MAGNETIC RESONANCE IMAGING METHOD - In a non-Cartesian sampling method, a trajectory along which a measurement space is sampled is optimized. That is, data placed on one spiral trajectory heading outward from the center of the measurement space is sampled from a plurality of echo signals. The sampling is performed such that the data is placed continuously, without overlapping, in order from the center to the outside. Alternatively, the data may be overlapped and a mismatch between echo signals may be corrected using the data of the overlapped portion. | 05-10-2012 |
| 20120101385 | ULTRASONIC DIAGNOSTIC APPARATUS AND SOUND SPEED CORRECTION METHOD - In order to provide an ultrasonic diagnostic apparatus and a sound speed correction method capable of performing sound speed correction without affecting real-time efficiency, the present invention is characterized in that a reference sound speed image signal is acquired by setting a reference sound speed and a different sound speed image signal is acquired by setting a different sound speed from the reference sound speed and that sound speed correction information is acquired by correcting reference sound speed information based on the reference sound speed image signal using different items of sound speed information based on the different sound speed image signal. | 04-26-2012 |
| 20120098535 | MAGNETIC RESONANCE IMAGING APPARATUS AND EDDY CURRENT COMPENSATION METHOD - An object is to correct a magnetic field caused by an eddy current, which is generated due to application of a gradient magnetic field, not only in the application direction of the gradient magnetic field but also in a direction different from the application direction of the gradient magnetic field. In the present invention, in order to achieve this object, a compensation magnetic field which compensates for an eddy current magnetic field generated in each of an application direction of a test gradient magnetic field and a direction different from the application direction in each direction is calculated using the test gradient magnetic field. When generating an arbitrary gradient magnetic field, a compensation magnetic field which compensates for an eddy current magnetic field according to application of an arbitrary gradient magnetic field on the basis of the measured eddy current magnetic field in each direction is generated together with the arbitrary gradient magnetic field. | 04-26-2012 |
| 20120093384 | MAGNETIC RESONANCE IMAGING APPARATUS AND IMAGING SLICE DETERMINATION METHOD - In order to provide a technique for accurately realizing an examination, which is for acquiring a plurality of images of the same examination section, without a complicated operation and an extension of an examination time, body movement information of a subject is acquired immediately before each imaging in an examination, and it is determined whether or not there is a change in the position of the subject by comparing it with body movement information immediately before reference imaging. Only when there is a change in the position of the subject, an imaging slice setting image is acquired again. Then, a recommended imaging slice is calculated using the newest imaging slice setting image. | 04-19-2012 |
| 20120092954 | ULTRASONIC TRANSMITTING/RECEIVING CIRCUIT AND ULTRASONIC DIAGNOSTIC APPARATUS - An ultrasonic transmitting/receiving circuit equipped with: a semiconductor circuit element which comprises at least three terminals including a first terminal connected to a plurality of transducer elements that constitute an ultrasonic probe, a second terminal connected to a transmission signal generating circuit, and a third terminal serving as an output terminal of an amplifier of a reception signal from the transducer element, and which has a function of amplifying a signal inputted from one terminal by the other terminal and outputting the amplified signal between at least two terminals among the above-said three terminals; and a control unit which performs control so as to cause the semiconductor circuit element to perform a first function of functioning as a switch for inputting a transmission signal to the transducer element and a second function of amplifying the reception signal received from the transducer element. | 04-19-2012 |
| 20120087564 | ULTRASONIC DIAGNOSTIC APPARATUS, ULTRASONIC IMAGE PROCESSING APPARATUS, ULTRASONIC IMAGE PROCESSING PROGRAM, AND ULTRASONIC IMAGE GENERATION METHOD - In order to generate a three-dimensional tomographic image in which the visibility of specific tissue that an examiner wants is enhanced, an ultrasonic diagnostic apparatus | 04-12-2012 |
| 20120083698 | ULTRASONIC DIAGNOSTIC APPARATUS AND INTIMA-MEDIA THICKNESS MEASURING METHOD THEREFOR - Disclosed is an ultrasonic diagnostic apparatus provided with an imaging unit configured to obtain an ultrasonic image of a carotid artery portion of an object to be examined, a parting line calculation unit configured to set at least one threshold value and calculate a parting line for segmenting the ultrasonic image into multiple regions, an intima-media thickness calculation unit configured to specify a direction for searching the multiple regions, search an intima-media region in the specified direction based on the brightness, draw multiple curves based on the position acquired by the search and positional information on the carotid artery portion in the ultrasonic image, and calculate the intima-media thickness from the distance between the multiple curves. | 04-05-2012 |
| 20120078112 | ULTRASONIC DIAGNOSTIC APPARATUS AND ULTRASONIC PROBE USED IN SAME - The present invention provides an ultrasonic probe contains at least one reception preamplifier that is provided per transducer element and connected to the transducer at an input side thereof and to a cable at an output side thereof, a transmission bypass unit that is connected between the cable and the transducer, blocks off a reception signal and allows a transmission signal to pass therethrough, and a floating unit that is connected between a power supply terminal of the preamplifier and a driving power source and increases impedance thereof for a high-voltage transmission signal, whereby a bias potential of the preamplifier is electrically set to a floating state and returned to an original bias potential by a reception time. | 03-29-2012 |
| 20120069701 | ULTRASONIC TRANSDUCER AND ULTRASONIC DIAGNOSTIC APPARATUS PROVIDED WITH SAME - For disposing projections of insulating film protruding into a hollow part in CMUT in order to suppress injection of electrical charge into the insulating film due to contact of a lower surface of a membrane with a lower surface of the hollow part, there are provided a structure of disposed projections preferred for suppressing increase in driving voltage for CMUT and decrease in receiving sensitivity, and an ultrasonic diagnostic apparatus using the same. The ultrasonic transducer of the present invention comprises a first electrode, a lower insulating film formed on the first electrode, an upper insulating film provided so as to form a hollow part above the lower insulating film, and a second electrode formed on the upper insulating film, and is characterized in that the lower insulating film or the upper insulating film has projections on the side of the hollow part, and the first electrode or the second electrode has openings formed at positions corresponding to the positions at which the projections are formed. | 03-22-2012 |
| 20120066895 | METHOD FOR ADJUSTING MAGNETIC RESONANCE IMAGING APPARATUS AND SUPERCONDUCTIVE MAGNET EXCITATION DOCK - An adjustment method of a magnetic resonance imaging apparatus includes: a cooling and excitation step in which work of transporting a superconducting magnet to a facility different from a facility where the superconducting magnet is to be installed, cooling a superconducting coil of the superconducting magnet with a refrigerant, and supplying a current from an external power supply for excitation is repeated until a predetermined rated current flows; a demagnetization and transportation step of demagnetizing the superconducting coil and transporting the superconducting magnet to the facility where the superconducting magnet is to be installed in a state where the superconducting coil is cooled by the refrigerant; and an installation step of installing the superconducting magnet in the facility where the superconducting magnet is to be installed and supplying a predetermined rated current from an external power supply to the superconducting coil in order to excite the superconducting coil. | 03-22-2012 |
| 20120065499 | MEDICAL IMAGE DIAGNOSIS DEVICE AND REGION-OF-INTEREST SETTING METHOD THEREFORE - A medical image diagnosis device according to the present invention has a medical image acquiring unit that acquires a medical image, a three-dimensional image constructing unit that constructs a three-dimensional image containing a motional internal organ region in the medical image, a sectional image generator that generates a two-dimensional sectional image serving as a reference image from the three-dimensional image, a region dividing unit that divides the reference image into plural regions on the basis of a criterion for region division, and a region-of-interest setting unit that calculates motion states of the plural regions, specifies at least one region of the plural regions on the basis of the calculated motion states, and sets as a region of interest a region of the medical image in which the specified region is contained. | 03-15-2012 |
| 20120046552 | ULTRASONIC DIAGNOSTIC APPARATUS, ULTRASONIC PROBE, AND ULTRASONIC DIAGNOSTIC METHOD - In order to provide an ultrasonic diagnostic apparatus with a transceiver circuit configuration which has a small number of components and is suitable for miniaturization, an amplifier circuit used for both transmission and reception which can be built in an ultrasonic probe and has a function of adding currents of received signals from plural elements is provided in the ultrasonic diagnostic apparatus. In addition, an analog matrix switch ( | 02-23-2012 |
| 20120041313 | ULTRASONIC IMAGING DEVICE - The absolute pressure inside the heart with respect to heartbeat time phase is measured non-invasively or with minimal invasion. An ultrasonic diagnostic device comprising: a pressure sensor that detects artery pressure non-invasively; a reference pressure computation part that converts the artery pressure into absolute reference pressure with respect to a reference point; a spatial pressure difference calculation part that calculates a spatial pressure difference between the reference point and a location distinct from the reference point; and an absolute pressure computation part that calculates intracardiac absolute pressure using a shape image, the reference pressure, and the spatial pressure difference. | 02-16-2012 |
| 20120041312 | Method for Improving Image Quality of Ultrasonic Image, Ultrasonic Diagnosis Device, and Program for Improving Image Quality - In an ultrasonic diagnosis device, while a signal component is preserved, a factor of degrading image quality such as a flicker of a noise is suppressed. An input image is separated into a signal component image and a noise component image. After frame synthesis processing is performed on the noise component image, the signal component image is synthesized with the noise component image having undergone the frame synthesis. Thus, the noise is suppressed. Otherwise, after the input image is separated into the signal component image and noise component image, the frame synthesis processing is performed on the signal component image. The noise component image is then synthesized with the signal component image having undergone the frame synthesis. Thus, discernment of a signal can be improved. | 02-16-2012 |
| 20120038673 | MAGNETIC RESONANCE IMAGING APPARATUS AND METHOD FOR DISPLAYING RUNNING DIRECTION OF FIBROUS TISSUE - In order to be able to easily obtain a color FA image in which the same fibrous tissue has the same color display even if images are captured in a state in which the position of an object relative to an MRI apparatus is different, a diffusion tensor is configured using plural sets of the diffusion-weighted image data acquired by capturing images of a site including the fibrous tissue of the object, an eigenvector is obtained from the diffusion tensor, the eigenvector represented by a predetermined first coordinate system is converted into a second coordinate system, and an image representing the running direction of the fibrous tissue is obtained on the basis of the components of the eigenvector represented by the second coordinate system. | 02-16-2012 |
| 20120038242 | ULTRASONIC PROBE AND ULTRASONIC IMAGING APPARATUS - Artifacts due to lateral wave that occurs in a substrate of a Capacitive Micro-machined Ultrasonic Transducer is reduced. The substrate thickness of the ultrasonic transducer is set in an optimum range to efficiently radiate the energy of lateral wave in the sensitive band | 02-16-2012 |
| 20120033201 | BIOLOGICAL OPTICAL MEASUREMENT INSTRUMENT AND METHOD FOR DETERMINING DAMAGE OF OPTICAL FIBERS - A biological optical measurement instrument has a gain adjustment unit ( | 02-09-2012 |
| 20120029351 | ULTRASONIC DIAGNOSTIC APPARATUS AND CARRIER SIGNAL GENERATING CIRCUIT - In order to simplify a manufacturing process and reduce cost and power consumption by providing an ultrasonic diagnostic apparatus including a carrier signal generating circuit excellent in IC implementation, a carrier signal generating circuit for generating an output voltage Vo applied to an ultrasonic probe | 02-02-2012 |
| 20120027282 | ULTRASONIC DIAGNOSIS APPARATUS AND METHOD FOR CONSTRUCTING DISTRIBUTION IMAGE OF BLOOD FLOW DYNAMIC STATE - An ultrasonic diagnostic apparatus is provided for displaying a color map on which a difference in blood flow dynamics is reflected. Setting a test subject who is administered a contrast agent is assumed as an imaging target, and a probe transmits and receives ultrasonic waves to and from the target for contrast imaging. Image data is constructed based on signals received by the probe and a time-intensity curve is generated from intensity values of the image data. According to the time-intensity curve, a value of a predetermined parameter is calculated for producing a distribution image of blood flow dynamics. The distribution image (color map) of the blood flow dynamics is produced from the parameter value. The color map is a two-dimensional or a three-dimensional image being color-coded according to the parameter value. At least one of the followings may be used as the parameter; a contrast agent inflow start time, a balanced intensity arrival time, a contrast agent disappearance start time, a contrast agent duration, a preset threshold arrival time, an intensity increase rate, an intensity decrease rate, intensity of balanced state, and a total flow amount. | 02-02-2012 |
| 20120027276 | MEDICAL IMAGE DIAGNOSTIC APPARATUS AND VOLUME CALCULATING METHOD - A medical image diagnostic apparatus provided with an image acquisition unit configured to acquire in-vivo information about an object to be examined as a medical image, a display unit configured to display the medical image, a setting unit configured to set a target region of volume measurement in the medial image displayed on the display unit, a calculation unit configured to perform calculation to split the target region into a plurality of volume elements, calculate the moving distance of the vertices of the volume elements when the target region of the acquired medical image moves, calculate the volumes of the volume elements after the movement using the calculated moving distance of the vertices, totalizing the calculated volumes of the volume elements after the movement and using the total volume as the volume of the target region, and a control unit configured to display the volume of the target region on the display unit. | 02-02-2012 |
| 20120019248 | MAGNETIC RESONANCE IMAGING APPARATUS AND METHOD - When imaging for sensitivity distribution measurement is performed, a whole-body coil for both transmission and reception and a specified coil used for the present imaging are used as a reception coil, while being switched. | 01-26-2012 |
| 20120014588 | MEDICAL IMAGE DIANOSTIC DEVICE, REGION-OF-INTERST SETTING METHOD, AND MEDICAL IMAGE PROCESSING DEVICE - The medical image diagnosis device of the invention includes image generating means configured to obtain image data of a tissue of an object and generate an image of the tissue of the object based on the image data, calculation means configured to calculate at least one of brightness and motion vectors of plural measurement points of the generated image, input means configured to specify an observation region of the image, a database in which a characteristic amount of at least one of the brightness and the motion vectors of the measurement points in respective images of plural different observation regions is set and stored in advance, checking means configured to read the characteristic amount of the observation region that is specified through the input means from the database and check the characteristic amount with results of calculation performed on the generated image by the calculation means, and ROI setting means configured to set a region of interest in the generated image based on checked results of the checking means. | 01-19-2012 |
| 20120008748 | MOBILE X-RAY DEVICE - A mobile X-ray device | 01-12-2012 |
| 20110316383 | ULTRASONIC TRANSDUCER, METHOD OF PRODUCING SAME, AND ULTRASONIC PROBE USING SAME - Disclosed is an art for a capacitive micromachined ultrasonic transducer (CMUT), which suppresses deformation in a cavity, non-uniformity in the thickness of an insulating film enclosing the cavity, and deterioration in the flatness of the surface profile of a membrane, even when the bottom electrode of the ultrasonic transducer is electrically connected from the bottom of the bottom electrode. The ultrasonic transducer is provided with: a bottom electrode ( | 12-29-2011 |
| 20110313291 | MEDICAL IMAGE PROCESSING DEVICE, MEDICAL IMAGE PROCESSING METHOD, MEDICAL IMAGE DIAGNOSTIC APPARATUS, OPERATION METHOD OF MEDICAL IMAGE DIAGNOSTIC APPARATUS, AND MEDICAL IMAGE DISPLAY METHOD - A medical image processing device of the invention includes: an image acquisition unit that acquires three-dimensional image data including a moving organ; an image display unit that displays the three-dimensional image data as a three-dimensional image; an object-to-be-measured setting unit that sets a desired object to be measured on the three-dimensional image displayed on the image display unit; a diagnostic index calculating unit that calculates the amount of displacement of the three-dimensional image data in each time phase for the desired object to be measured and calculates a diagnostic index on the basis of the amount of displacement calculated in each time phase; and a control unit that performs control to display the diagnostic index on the image display unit. | 12-22-2011 |
| 20110301465 | ULTRASONIC DIAGNOSTIC APPARATUS AND ELASTIC IMAGE DISPLAY METHOD - An elastic image suitable for diagnosis is easily acquired without depending on the examiner's pressure technique. The displacement of tissue in a tomographic portion of an object is measured on the basis of a pair of RF signal frame data items regarding the tomographic portion, which are obtained at different times by transmitting and receiving an ultrasonic wave to and from the object (b). The average displacement of each beam line (d | 12-08-2011 |
| 20110301454 | MEDICAL IMAGE DISPLAY METHOD, MEDICAL IMAGE DIAGNOSTIC APPARATUS, AND MEDICAL IMAGE DISPLAY DEVICE - Disclosed is a medical image display method for displaying a tomographic image obtained by scanning an image of a cross-section of an organ of an object and finding the volume of an inner cavity region surrounded by the inner wall surface of the inner cavity of the organ on the basis of the displayed tomographic image, comprising a step that segmentizes the inner cavity region into a first inner cavity region and a second inner cavity region, a step that calculates volume of the first inner cavity using the disk method, a step that calculates volume of the second inner cavity region using the pseudo disk method, a step that calculates the entire inner cavity volume by summing the calculated volumes of the first and the second inner cavity, and a step that displays the first and the second inner cavity volumes and/or the entire inner cavity volume. | 12-08-2011 |
| 20110274240 | X-RAY CT APPARATUS AND METHOD - An X-ray CT apparatus includes: an X-ray source which emits X-rays while rotating around a subject; a compensation filter which adjusts at least one of the output distribution and the spectral distribution of the X-rays emitted from the X-ray source to the subject; an X-ray detector which is disposed opposite to the X-ray source with the subject interposed therebetween, rotates together with the X-ray source, and detects the amount of X-rays transmitted through the compensation filter and the subject; an image operation unit which reconstructs a tomographic image of the subject on the basis of the detected amount of X-rays; a display unit which displays the tomographic image; a control unit which controls each of the constituent components; and a compensation unit which compensates for deterioration of image quality, which is based on the amount of displacement between the rotation center of the X-ray source and a desired position of the subject, by changing an X-ray tube current modulation pattern indicating a time-series change of emission of the X-rays and/or by moving the position of the subject. | 11-10-2011 |
| 20110272693 | MANUFACTURING METHOD OF ULTRASONIC PROBE AND ULTRASONIC PROBE - The manufacturing yield of semiconductor devices (CMUTs) is improved. Before a polyimide film serving as a protective film is formed, a membrane is repeatedly vibrated to evaluate the breakdown voltage between an upper electrode and a lower electrode, and the upper electrode of a defective CMUT cell whose breakdown voltage between the upper electrode and the lower electrode is reduced due to the repeated vibrations of the membrane is removed in advance to cut off the electrical connection with other normal CMUT cells. By this means, in a block RB or a channel RCH including the recovered CMUT cell RC, reduction in the breakdown voltage between the upper electrode and the lower electrode after the repeated vibrations of the membrane is prevented. | 11-10-2011 |
| 20110267060 | MAGNETIC RESONANCE IMAGING DEVICE - A magnetic resonance imaging device includes magnetic field generating means and control means for controlling receiving means according to a predetermined pulse sequence, the predetermined pulse sequence including an unnecessary material suppressing sequence unit for canceling a signal from an unnecessary material which is not a measurement target and a main imaging sequence unit for measuring a nuclear magnetic resonance signal used to create an image of an examinee. The unnecessary material suppressing sequence unit generates at least two or more high frequency magnetic field pulses so that the longitudinal magnetization of the unnecessary material is made spatially uniform in the imaging space under application of a first high frequency magnetic field pulse in the main imaging sequence unit. The magnetic resonance imaging device further includes adjusting means for adjusting the flip angles of the two or more high frequency magnetic field pulses, and the control means applies the two or more high frequency magnetic field pulses at the flip angles adjusted by the adjusting means. | 11-03-2011 |
| 20110255755 | MEDICAL IMAGE DISPLAY DEVICE AND METHOD - In a medical image display device for displaying a hollow organ of an examinee as a panoramic image, in order to inform an operator of the existence or nonexistence of a blind area in a panoramic image, the medical image display device has a panoramic image creating unit configured to create a panoramic image of a hollow organ of an examinee and a display unit configured to display the panoramic image, and further has a blind area detecting unit configured to detect a blind area in the panoramic image and an informing unit configured to inform an operator of the existence or nonexistence of the blind portion. Furthermore, a medical image display method of the present invention has a panoramic image creating step that creates a panoramic image of a hollow organ of an examinee and a display step that displays the panoramic image, and further has a blind area detecting step that detects a blind area in the panoramic image and an informing step that informs an operator of the existence or nonexistence of the blind portion. | 10-20-2011 |
| 20110254845 | IMAGE PROCESSING METHOD AND IMAGE PROCESSING APPARATUS - The present invention proposes an image processing method and an image processing apparatus, in which an object of interest is selected in a three-dimensional scene by using information on a section parallel to a sight line, and a surface is generated to divide the line of sight passing through the object into two parts, so as to display the user-interested object through an opaque area by establishing different rendering parameters for the two parts of the sight line. | 10-20-2011 |
| 20110249881 | MAGNETIC RESONANCE IMAGING APPARATUS AND METHOD OF COMPENSATION FOR READOUT GRADIENT MAGNETIC FIELD ERROR - In nonlinear measurement in which a dephasing readout gradient magnetic field is not used, a positional shift of the k space data, which is caused by a difference between a readout gradient magnetic field actually applied and the calculated value, and a deterioration in the image quality resulting therefrom are reduced. In order to do so, in the invention, when executing an imaging pulse sequence including a nonlinear measurement which does not use a dephasing gradient magnetic field, a prescan sequence is executed and a correction value for correcting the shift of the readout gradient magnetic field from the set value is calculated from the data acquired in the prescan. When gridding the data acquired in the imaging pulse sequence, a parameter value of the gridding is corrected using the correction value to perform the gridding. | 10-13-2011 |
| 20110235773 | RADIATION IMAGING DEVICE - Disclosed is an X-ray imaging apparatus in which a correction function used to correct scattered X-rays and a correction function used to correct beam hardening can be simply and precisely determined so that the correcting operations are performed in an appropriate sequence using the correction functions thus determined to enhance the precision in the correction and improve the image quality. The scattered X-rays and the beam hardening are corrected sequentially in this order, using the scattered X-ray correction function and the beam hardening correction function, both calculated using measured data for calculating the correction functions. The scattered X-ray correction function approximates as to each transmission distance, the data measured with changes in the transmission distance and with changes in the scattered X-ray amount, and associates the correction value thus obtained with transmittance data. Upon calculation of the beam hardening correction function, data measured with changes in the transmission distance is converted into projection data and is linearly approximated to obtain an ideal amount of beam hardening. | 09-29-2011 |
| 20110228994 | MEDICAL IMAGE PROCESSING DEVICE AND MEDICAL IMAGE PROCESSING METHOD - There is provided a medical image processing device and a medical image processing method that can extract and display lesion candidate regions having different sizes and similarity forms at a time through a series of processing. Therefore, with respect to a first medical image, a first evaluation for the curved surface form of the first medical image is made to extract first lesion candidate regions. With respect to each of the first lesion candidate regions extracted by a first extracting unit, a second evaluation for the curved surface form thereof is made to extract a second lesion candidate region. The second lesion candidate region extracted by a second extracting unit is superimposed and displayed on a second medical image. | 09-22-2011 |
| 20110224550 | ULTRASOUND DIAGNOSTIC SYSTEM AND METHOD FOR GENERATING STANDARD IMAGE DATA FOR THE ULTRASOUND DIAGNOSTIC SYSTEM - An ultrasound diagnostic system of the invention includes: an ultrasound probe that transmits and receives an ultrasound wave to and from an object; 3D position detection means configured to detect the position and inclination of a position sensor with respect to the object, the position sensor being mounted on the ultrasound probe; storage means configured to acquire and store 3D image data acquired by the ultrasound probe scanning on the body surface of the object and the position and inclination of the position sensor detected by the 3D position detection means; standard image data setting means configured to divide the 3D image data stored in the storage means into a plurality of slice image data and sets image position information and inclination information of a predetermined standard image data structure to the respective slice image data based on the position and inclination information of the position sensor detected by the 3D position detection means; and standard image data generation means configured to generate 3D standard image data by adding the image position information and inclination information set by the standard image data setting means to the respective slice image data. | 09-15-2011 |
| 20110224549 | ULTRASONIC DIAGNOSTIC APPARATUS AND METHOD FOR GENERATING ULTRASONIC IMAGES - When a series of plural data processes are processed by different processors, the need to harmonize the processing cycles between the respective processors and adjust the processing time is obviated. The invention includes a data conversion section | 09-15-2011 |
| 20110224548 | ULTRASONIC DIAGNOSTIC APPARATUS AND METHOD FOR PROCESSING SIGNAL OF ULTRASONIC DIAGNOSTIC APPARATUS - An ultrasonic diagnostic apparatus including: an ultrasonic probe configured to transmit an ultrasonic beam to an examinee, and receive a reflected echo signal from the examinee; a beam forming unit configured to supply the ultrasonic probe with a driving signal for transmitting an ultrasonic beam; a data converter configured to conduct a plurality of signal processing on echo data obtained by digitizing the reflected echo signal to convert the echo data to ultrasonic image data; and a display unit configured to display an ultrasonic image based on the converted ultrasonic image data. | 09-15-2011 |
| 20110222651 | PHASE SHIFT INVERTER, X-RAY HIGH-VOLTAGE DEVICE USING SAME, X-RAY CT DEVICE, AND X-RAY IMAGING DEVICE - There is provided an inverter circuit which allows a single drive circuit to carry out both the tracking control for tracking resonance frequency fluctuations caused by load fluctuations, and the power control, thereby reducing switching loss. An inverter drive circuit part obtains a phase difference between output current and output voltage directed to a load circuit which is connected to a midpoint of two arm circuits of the inverter circuit, and controls a phase of the driving signal directed to each of the semiconductor switches in such a manner that the phase difference becomes zero or a predetermined value. This allows an operating frequency of the inverter circuit part to track a resonance frequency of the load circuit. In addition, this enables a current phase to be delayed with respect to a voltage phase, thereby achieving ZCS. Since the phase difference between the output current and the output voltage is used, it is not necessary to use an auxiliary circuit to measure a current value in proximity to the semiconductor switches, thereby achieving a simple configuration. | 09-15-2011 |
| 20110221756 | IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD - Provided is an image processing device capable of effectively displaying the details of a plurality of different branches included in a structure that is divided into a plurality of branches. An image processing device | 09-15-2011 |
| 20110218440 | ULTRASONIC DIAGNOSTIC APPARATUS AND SIGNAL PROCESSING METHOD IN ULTRASONIC DIAGNOSTIC APPARATUS - An ultrasonic diagnostic apparatus of the invention includes: an ultrasonic probe that transmits an ultrasonic beam to a subject and receives reflected echo signals from the subject; a beam forming section that supplies a driving signal causing the ultrasonic probe to transmit the ultrasonic beam; a data conversion section that converts echo data obtained by digitalizing the reflected echo signals into ultrasonic image data; and a display that displays ultrasonic images based on the converted ultrasonic image data, wherein the ultrasonic diagnostic apparatus includes a process configuration text which is capable of rewriting a plurality of signal processes executed by the data conversion section and the execution order of the plurality of signal processes in a general language, and wherein the data conversion section includes a controller that executes the plurality of signal processes on the echo data based on the description of the process configuration text to thereby convert the echo data into the ultrasonic image data. | 09-08-2011 |
| 20110218439 | ULTRASONIC IMAGE PROCESSING METHOD AND DEVICE, AND ULTRASONIC IMAGE PROCESSING PROGRAM - An ultrasonic image processing method and device, and an ultrasonic image processing program which can correspond to analytical methods different depending on a region or the purpose of a diagnosis or treatment. The ultrasonic image processing method comprises an image data creation step which stores a detection result obtained by irradiating a subject with ultrasonic waves by an irradiating section and detecting an ultrasonic signal from the subject by a detecting section and creates at least two-frame image data different in detection timing on the basis of the stored detection result, a motion vector distribution image creation step which creates a motion vector distribution image on the basis of a predetermined motion vector analysis through the use of a plurality frames of the image data, and a conversion step which converts a vector distribution image to a scalar distribution image on the basis of a plurality of established regions of interest (ROI). | 09-08-2011 |
| 20110213235 | MAGNETIC RESONANCE IMAGING APPARATUS, INITIAL STATE CREATION METHOD, OPTIMUM INTENSITY DETERMINATION METHOD, AND MAGNETIC RESONANCE IMAGING METHOD - This aims to shorten the time period, which is required for optimizing a radio-frequency magnetic field pulse intensity, thereby to shorten the measurement time period of an MRI entirety. | 09-01-2011 |
| 20110204890 | ANTENNA DEVICE AND MAGNETIC RESONANCE IMAGING DEVICE - Manufacture cost and maintenance cost of RF coils of MRI devices are reduced without any limitation concerning size of the coils. By constituting an antenna device for magnetic resonance imaging devices with a cylindrical outer conductor, a looped ribbon-shaped conductor disposed inside the cylindrical outer conductor along the cylindrical surface, and a feed point for transmission and/or reception between the cylindrical conductor and the ribbon-shaped conductor, and disposing the ribbon-shaped conductor so that length thereof can be readily adjusted, there is provided an antenna device for magnetic resonance imaging devices that generates a magnetic field component perpendicular to the central axis of the cylinder at a desired resonance frequency and shows sensitivity without using capacitors and without being imposed any limitation concerning size in the diametral direction of the cylinder. | 08-25-2011 |
| 20110203374 | ULTRASONIC DIAGNOSTIC APPARATUS - An ultrasonic diagnostic apparatus having an ultrasonic probe configured to transmit and receive an ultrasonic wave, a transmitter for configured to supply a signal to the ultrasonic probe and forming an ultrasonic beam, a receiver configured to receive a reception signal obtained by transmitting the ultrasonic beam to an object, a signal processor configured to form an ultrasonic image on the basis of the reception signal, a display unit configured to display the ultrasonic image, and a control unit configured to control the transmitter, the receiver, the signal processor and the display unit, comprising a setting unit configured to set an operation mode of the transmitter to a low power consumption operation mode or a high spatial resolution operation mode. | 08-25-2011 |
| 20110200243 | MAGNETIC RESONANCE IMAGING APPARATUS AND METHOD - Disclosed is a magnetic resonance imaging apparatus comprising static magnetic field generation means, gradient magnetic field generation means, high-frequency magnetic field generation means, reception means, signal processing means, and control means which controls the gradient magnetic field generation means, the high-frequency magnetic field generation means, the reception means, and the signal processing means, wherein said apparatus comprises: approximation means that approximates the output error of the gradient magnetic field using a combination of multiple parameter values with respect to each direction of the gradient magnetic field; evaluation means that evaluates the combinations of multiple parameter values based on the image quality of a magnetic resonance image that is reconstructed while taking into account the output error of the gradient magnetic field that has been approximated by the approximation means; and determination means that, based on the result of the evaluation by the evaluation means, determines a desired combination among the combinations of multiple parameter values. | 08-18-2011 |
| 20110196225 | MAGNETIC RESONANCE IMAGING DEVICE - In the MRS measurement using magnetic resonance for performing measurement of two regions in the same section, highly precise results are efficiently obtained with coincidence of axes with axes in positioning image. In measurement according to the PRESS method for a plurality of regions each localized (specified) with a set of perpendicularly intersecting three slices, wherein one or two slices are common to the sets of three slices localizing the regions, and slices not common do not intersect, a slice not common to those of a region to be selectively excited is excited with a radio frequency magnetic field of which phase is different by 180 degrees from that of a radio frequency magnetic field used for exciting the region to be selectively excited a number of times equal to the number of common slices, and during the measurement of the region to be selectively excited, a group of regions other than the region to be selectively excited are thermally equilibrated. | 08-11-2011 |
| 20110184289 | ULTRASONIC DIAGNOSTIC APPARATUS - An ultrasonic diagnostic apparatus in accordance with the invention includes: an ultrasonic probe in which multiple ultrasonic vibrators for transmitting/receiving an ultrasonic wave are arranged; a transmitter configured to provide an electric signal to each of the vibrators in the ultrasonic probe, the transmitter providing a square wave signal having any multiple frequency components to the each of the vibrators, causing the vibrators to form an ultrasonic beam; a receiver configured to receive a reception signal obtained by transmitting the ultrasonic beam; and a signal processor configured to form an ultrasonic image based on the reception signal. | 07-28-2011 |
| 20110182137 | ULTRASONIC DIAGNOSTIC APPARATUS - An ultrasonic diagnostic apparatus provided with an ultrasonic image measuring unit configured to measure an ultrasonic image of an object to be examined, a display unit configured to display the ultrasonic image, an input unit configured to input parameters for controlling the ultrasonic image measuring unit and the display unit, and a control unit configured to control the ultrasonic image measuring unit and the display unit by means of the parameters. | 07-28-2011 |
| 20110181287 | MAGNETIC RESONANCE IMAGING APPARATUS - A magnetic resonance imaging apparatus comprises: static magnetic field generation means which generates a static magnetic field in an imaging space where an object to be examined is placed; gradient magnetic field generation means which generates a gradient magnetic field in the imaging space; high-frequency magnetic field generation means which generates a high-frequency magnetic field in the imaging space; calculation means which calculates an amount of the electromagnetic wave absorbed by the object when the high-frequency magnetic field is irradiated to the object; and a measurement means which measures a characteristic of the high-frequency magnetic field generation means. | 07-28-2011 |
| 20110181286 | MAGNETIC RESONANCE IMAGING APPARATUS, AND BREATH-HOLDING IMAGING METHOD - In order to make it possible to set the optimal breath-holding imaging conditions according to the subject without extension of an imaging time or the sacrifice of image quality, one scan is divided into one or more breath-holding measurements and free-breathing measurements on the basis of the imaging conditions of a breath-holding measurement, which are input and set according to the subject, and a region of the k space measured in the breath-holding measurement is controlled. Preferably, in the breath-holding measurement, low-frequency data of the k space is measured. Moreover, preferably, imaging conditions of the breath-holding measurement include the number of times of breath holding or a breath-holding time, and the operator can set any of these values. | 07-28-2011 |
| 20110164064 | IMAGE PROCESSING DEVICE AND METHOD FOR PROCESSING IMAGE - A medical image processing device | 07-07-2011 |
| 20110144500 | ULTRASONIC DIAGNOSTIC APPARATUS AND METHOD FOR CALCULATING COORDINATES OF SCANNED SURFACE THEREOF - An ultrasonic diagnostic apparatus includes a storage unit configured to store information about the contour of an object to be examined and information about the position of a specified region of the ultrasonic image of the object both corresponded to a body contour model coordinate system and a coordinate calculating unit configured to correspond the object coordinate system to the body contour model coordinate system according to the information about the position of the specified region of the object, associating with each other the object coordinate system and the body contour model coordinate system used when comparing an ultrasonic tomographic image based on ultrasonic tomographic data stored in an image storage unit with a real-time ultrasonic tomographic image scanned by an ultrasonic probe, and thereby calculating the coordinates of the scanned plane of the real-time ultrasonic tomographic image in association with the object coordinate system. | 06-16-2011 |
| 20110135182 | X-RAY CT IMAGE FORMING METHOD AND X-RAY CT APPARATUS USING THE SAME - In order to provide a CT image forming method that can reduce an artifact caused by an image reconstructing method, and an X-ray CT apparatus using the same, an X-ray CT image forming method according to the invention is characterized in that an artifact component caused by the image reconstructing method of the projection data is obtained by calculation; the determined artifact component is subtracted from the projection data to create corrected projection data containing an inverted artifact component, and image reconstruction is executed on the corrected projection data to obtain a reconstructed image from which the artifact is reduced. The inverted artifact component is obtained as differential between the projection data and re-projection data obtained by inversely projecting a reconstructed image which is obtained by reconstructing the projection data concerned. | 06-09-2011 |
| 20110121834 | HIGH-FREQUENCY COIL AND MAGNETIC RESONANCE IMAGING DEVICE - There is provided a high-frequency coil of an MRI device, which can easily and highly reproducibly reduce electromagnetic coupling between adjacent surface coils among a plurality of surface coils disposed with intervals. An electromagnetic decoupling coil that can generate a magnetic flux for canceling a magnetic flux generated by one of the adjacent surface coils and interlinking with the other surface coil is disposed between the adjacent surface coils. The electromagnetic decoupling coil is provided with a capacitor, and is tuned by means of the capacitor so that the electromagnetic coupling should be minimized in such a range that the resonance frequency thereof should be lower than the resonance frequency of the surface coils. | 05-26-2011 |
| 20110116594 | X-RAY CT APPARATUS - Smoothing processing appropriate for a subject is performed and a CT image in which artifacts are reduced is acquired. At least a part of the X-ray detecting data | 05-19-2011 |
| 20110110498 | MOBILE X-RAY APPARATUS - A technique for aiding the determination of whether or not desired imaging can be carried out by a mobile-type X-ray apparatus for X-ray imaging using a battery mounted therein as a drive source. | 05-12-2011 |
| 20110105888 | MAGNETIC RESONANCE IMAGING APPARATUS AND METHOD OF DETERMINING EXECUTION ORDER - It has an object to suppress reduction of an examination efficiency caused by limitation of SAR (specific absorption rate) to the minimum level in an examination that plural imaging sequences containing different imaging sequences are consecutively executed. In consideration of the time variation of time average SAR value in the overall examination, the order of executing the imaging sequences is determined so that the SAR value falls within a predetermined range and the waiting time between imaging sequences is minimum. The determination is performed by calculating a waiting time of each of all conceivable execution orders and selecting an execution order having the minimum waiting time. | 05-05-2011 |
| 20110089948 | MAGNETIC RESONANCE IMAGING APPARATUS - An MRI apparatus includes an imaging means being provided with a means for generating magnetic fields respectively of a static magnetic field, a gradient magnetic field, and an RF magnetic field, and a means for receiving an echo signal generated from a subject, the imaging means being for measuring echo data associated with at least one measurement trajectory in k-space, while varying angles with respect to a coordinate axis in the k-space of the measurement trajectory, so as to collect at least one measured data for each of the angles; and an image reconstruction means for rearranging the measured data in the k-space and reconstructing an image; wherein, the image reconstruction means calculates a phase for correction based on standard data selected from the measured data for each of the angles, prior to rearranging the measured data in the k-space, and performs a phase correction as to the measured data, by using the phase for correction being calculated. With the procedure above, it is possible to reduce an artifact caused by the nonlinearity of the gradient magnetic field and/or inhomogeneities of the magnetic field, without extending the imaging time. | 04-21-2011 |
| 20110089943 | MAGNETIC FIELD ADJUSTMENT FOR MRI APPARATUS - A measured error magnetic field distribution is divided into eigen-mode components obtained by a singular decomposition and iron piece arrangements corresponding to respective modes are combined and arranged on a shim-tray. An eigen-mode to be corrected is selected in accordance with an attainable magnetic field accuracy (homogeneity) and appropriateness of arranged volume of the iron pieces. Because the adjustment can be made with the attainable magnetic field accuracy (homogeneity) being known, an erroneous adjustment can also be known, and the adjustment is automatically done during repeated adjustments. As a result, an apparatus with a high accuracy can be provided. In addition, there is an advantageous effect of being able to detect a poor magnet earlier by checking the attainable homogeneity. | 04-21-2011 |
| 20110082677 | STIMULATING TASK PRESENTATION DEVICE AND STIMULATING TASK PRESENTATION METHOD FOR LIVING BODY OPTICAL MEASUREMENT APPARATUS - A load of a stimulating task on an examinee with a resting task being unstable is excluded, and an accurate answer of an examinee to presentation of a stimulating task is enabled. A stimulating task presentation device in a living body optical measurement device includes a stimulation presenting unit configured to present a stimulation to an examinee, a brain function measurement device for measuring a brain function of the examinee in parallel to presentation of the stimulation, and a stimulation presentation controller configured to control the stimulation presented by the stimulation presenting unit, and the stimulation presentation controller has a function of setting a resting task and a stimulating task to be presented to the examinee, a function of detecting an answer of the examinee to the resting task and the stimulating task, and a task presentation control function of determining the degree of stability on the basis of the detection result when the resting task is presented, and controlling presentation of the resting task or the stimulating task on the basis of the degree of stability. | 04-07-2011 |
| 20110075904 | ULTRASONIC IMAGING APPARATUS - Provided is an ultrasonic imaging apparatus including: a time-gain controller (TGC) that compensates an amplitude fading occurring in the process of propagation inside a living body; a scan converter (SC) that constructs image data; a TIC measurement unit that measures a TIC of each pixel; an evaluation index input unit that inputs an index for evaluating hemodynamics on the basis of a TIC; a mapping parameter estimation unit that estimates a mapping parameter comparable to an evaluation index; a TIC image construction unit that constructs a two-dimensional image on the basis of the mapping parameter; and a pixel detection unit that extracts a region corresponding to a color map from a TIC image, and utilizing a TIC measured with each pixel so as to measure a difference in hemodynamics. | 03-31-2011 |
| 20110074418 | MAGNETIC RESONANCE IMAGING APPARATUS AND METHOD OF ASSISTING SETTING OF IMAGING PARAMETER - An object is to enhance usability of parameter check when an imaging parameter is changed in multistation imaging, and easily obtain a desired image with high quality. In the multistation imaging, it is determined in a lump before imaging whether an image having desired quality is obtained by using the changed value of the imaging parameter, and the result is presented to an operator. The determination is executed in the order of “possible or impossible” determination of execution of imaging itself and “possible or impossible” determination of combination of obtained images. When it is determined that it is impossible to execute the imaging itself, the determination processing is finished. At this time, a recommended value may be presented. | 03-31-2011 |
| 20110071396 | ULTRASONIC PROBE, METHOD FOR MANUFACTURING THE SAME AND ULTRASONIC DIAGNOSTIC APPARATUS - An ultrasonic probe is provided with a CMUT chip having a plurality of transducer elements that change electromechanical coupling coefficients or sensitivities in accordance with a bias voltage to transmit and receive ultrasonic waves, an electric conducting layer formed on the ultrasonic irradiation side of the CMUT chip, an acoustic lens arranged on the ultrasonic irradiation side of the CMUT chip, an insulating layer formed in the direction opposite to the ultrasonic irradiation side of the acoustic lens, a housing unit that stores the CMUT chip in which the electric conducting layer and the insulating layer are fixed with an adhesive and the acoustic lens, wherein the insulating layer is formed by the material that includes at least either silicon oxide or paraxylene to prevent a solvent of the adhesive from soaking into the adhered portion. | 03-24-2011 |
| 20110069874 | MEDICAL IMAGE PROCESSING DEVICE, MEDICAL IMAGE PROCESSING METHOD, AND MEDICAL IMAGE PROCESSING PROGRAM - A medical image processing device etc. which supports work for precisely identifying the area of a diagnosis object from a medical image scanned by a medical imaging apparatus is provided. | 03-24-2011 |
| 20110057655 | SOFTWARE FOR ADJUSTING MAGNETIC HOMOGENEITY, METHOD FOR ADJUSTING MAGNETIC HOMOGENEITY, MAGNET DEVICE, AND MAGNETIC RESONANCE IMAGING APPARATUS - On the basis of the magnetic field intensity distribution of a magnetic field space ( | 03-10-2011 |
| 20110026801 | MAGNETIC RESONANCE IMAGING APPARATUS, RECEIVING COIL AND METHOD OF MANUFACTURING THE COIL - A magnetic resonance imaging apparatus is provided, characterized by: one pair of static magnetic field generating means disposed sandwiching a space in which a test object is placed; magnetic field generating means configured to apply a high-frequency magnetic field and a gradient magnetic field to the test object placed in the static magnetic field; and receiving means configured to receive a nuclear magnetic resonance signal generated from the test object, and characterized in that: the receiving means includes a receiving coil having a predetermined coil pattern and capable of being shaped into a cylinder; the receiving coil includes flexible parts and rigid parts alternately disposed along the circumference direction when shaped into the cylinder; and the flexible parts include a flexible substrate on which a portion of the predetermined coil pattern is mounted and a air-bubbles-containing resin section for covering the both surfaces of the flexible substrate. | 02-03-2011 |
| 20110019890 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM - A processing is executed for identifying an image area which blocks an observation target, and removing the identified area. An image processing apparatus | 01-27-2011 |
| 20110004100 | ULTRASONIC DIAGNOSTIC APPARATUS, ULTRASONIC IMAGE PROCESSING METHOD, AND ULTRASONIC IMAGE PROCESSING PROGRAM - An ultrasonic diagnostic apparatus according to the present invention has an ultrasonic probe for transmitting/receiving an ultrasonic wave to/from an object while the object is pressed, a phasing and adding unit for generating RF signal frame data of a cross-sectional site of the object on the basis of a reflection echo signal measured by the ultrasonic probe, an ultrasonic image generating unit for generating an ultrasonic image of the cross-sectional site of the object on the basis of the RF signal frame data, a measurement target setting unit for setting a measurement target to the RF signal frame data or the ultrasonic image, a measurement target position tracing unit for tracing a positional variation of the set measurement target, a displacement image generating unit for generating a graph representing transition of a press state applied to the measurement target on the basis of the positional variation of the measurement target, and a display unit for displaying the generated graph. | 01-06-2011 |
| 20100329427 | MOBILE X-RAY APPARATUS - A mobile X-ray apparatus including a main body portion, a mobile dolly on which the main body portion is mounted, a support pole that is erectly provided on the mobile dolly, an X-ray generator supported on the support pole, and an image reading device for reading image information from an imaging plate in which X-ray image information is stored, and further including detecting means for detecting whether the mobile dolly is being moved, and reading control means for prohibiting reading of the image reading device when it is detected by the detecting means that the mobile dolly is being moved. | 12-30-2010 |
| 20100321019 | GRADIENT MAGNETIC FIELD COIL DEVICE AND MAGNETIC RESONANCE IMAGING APPARATUS - When the gradient magnetic field | 12-23-2010 |
| 20100316266 | MEDICAL IMAGE DIAGNOSTIC APPARATUS AND REMOTE MAINTENANCE SYSTEM - A remote maintenance system for medical image diagnostic apparatuses capable of preventing leak of personal information on the patient attached to a medical image. | 12-16-2010 |
| 20100296717 | MAGNETIC RESONANCE IMAGING APPARATUS AND MULTI-CONTRAST ACQUIRING METHOD - The contrast of an image captured by imaging using a multi-echo sequence by radial sampling is improved. | 11-25-2010 |
| 20100290682 | Magnetic Resonance Imaging Apparatus - An imaging pulse sequence includes; a tagging sequence for modulating nuclear magnetization of an object to be imaged; and an imaging sequence for non-measurement of a part of k-space data. | 11-18-2010 |
| 20100268081 | ULTRASONIC DIAGNOSTIC APPARATUS AND ULTRASONIC PROBE - An ultrasonic diagnosis apparatus including an ultrasonic probe having plural vibrating elements whose electromechanical coupling coefficients vary in accordance with the magnitude of a bias voltage supplied from a bias voltage supply unit, an ultrasonic image constructing unit for constructing an ultrasonic image on the basis of a reflection echo signal received from the ultrasonic probe, and a display unit for displaying the ultrasonic image is equipped with a calculation unit for calculating the magnitude of the bias voltage with respect to a collapse voltage of the vibrating elements, a storage unit for storing the calculated magnitude of the bias voltage, and a control unit for making the bias voltage supply unit supply the bias voltage to the vibrating elements in accordance with the stored magnitude of the bias voltage. | 10-21-2010 |
| 20100254515 | INVERTER DEVICE AND X-RAY HIGH-VOLTAGE DEVICE USING THE INVERTER DEVICE - There is provided an inverter device that can detect short-circuit of a switching element of an inverter circuit even under a load condition that a PWM driving signal is very small. The inverter device is provided with means for independently supplying a short-circuit detecting PWM driving signal to respective switching elements S | 10-07-2010 |
| 20100253347 | ANTENNA SYSTEM AND MAGNETIC RESONANCE IMAGING APPARATUS - An RF coil is provided with a hollow-shaped outer conductive element and strip-shaped conductive elements disposed along the outer conductive element in the axial direction. The strip-shaped conductive elements are disposed with uneven intervals to secure an internal space at a position where the strip-shaped conductive elements are not disposed. In order to obtain uniform sensitivity at the center section of the RF coil, the strip-shaped conductive elements and the outer conductive element are electrically connected via capacitors of which capacitances are adjusted so that a magnetic field component perpendicular to the center axis should be generated at a desired resonance frequency, and the strip-shaped conductive elements are axisymmetrically disposed with respect to the center axis of the outer conductive element. As a result, a comfortable examination space in a tunnel type MRI apparatus is achieved without increasing the manufacturing cost of the MRI apparatus. | 10-07-2010 |
| 20100249580 | IMAGE DIAGNOSIS SUPPORT DEVICE AND IMAGE DIAGNOSIS SUPPORT PROGRAM - An image diagnosis support device | 09-30-2010 |
| 20100245828 | BIOLOGICAL OPTICAL MEASUREMENT APPARATUS - A biological optical measurement apparatus including an applied unit having plural light irradiating probes for irradiating an object with light and plural light detecting probes for detecting light returning from the object, and worn by the object, a measuring unit for measuring the amount of light detected by the light detection probes, a two-dimensional image constructing unit for constructing two-dimensional topographic images from the measurement result of the detected light amount, and a monitor for displaying the two-dimensional topographic images, is further equipped with a three-dimensional image constructing unit for making the two-dimensional topographic images correspond to measurement positions and superposing the two-dimensional topographic images in order of measurement time to thereby construct a three-dimensional image, the thus-constructed three-dimensional image being displayed on the monitor. | 09-30-2010 |
| 20100244823 | MAGNETIC RESONANCE IMAGING APPARATUS AND METHOD - A magnetic resonance imaging apparatus comprising static magnetic field generating means for generating a static magnetic field in an imaging space, measuring means for generating a high-frequency magnetic field and a gradient magnetic field in the imaging space and measuring a nuclear magnetic resonance signal generated from an object to be examined placed in the imaging space, signal processing means for reconstructing a magnetic resonance image according to the nuclear magnetic resonance signal, control means for controlling the measuring means and the signal processing means, and display means for displaying the reconstructed magnetic resonance image obtained by the signal processing means. | 09-30-2010 |
| 20100242612 | ULTRASONIC PROBE, AND ULTRASONIC DIAGNOSTIC APPARATUS USING THE SAME - An ultrasonic probe including a cMUT chip that has plural oscillation elements whose electromechanical coupling coefficient or sensitivity varies in accordance with a bias voltage and transmits/receives an ultrasonic wave, an acoustic lens provided at an ultrasonic wave transmission/reception side of the cMUT chip, a backing layer provided to the opposite surface of the cMUT chip to the acoustic lens, and a substrate provided between the backing layer and the cMUT chip. The ultrasonic probe further includes thermal stress suppressing means for suppressing thermal stress occurring due to the difference in linear expansion coefficient caused by temperature variation between the substrate and the backing layer. | 09-30-2010 |
| 20100239071 | X-RAY TUBE - The present invention provides an X-ray tube that improves and stabilizes a withstanding voltage performance and thus ensures the reliability of a product. | 09-23-2010 |
| 20100226556 | Magnetic Resonance Imaging Apparatus and Blood Vessel Imaging Method - Blood streams different in direction can be selectively depicted, and a blood vessel image (MRA image) which has an excellent blood vessel contrast and in which a background signal is suppressed is obtained. Therefore, the present invention sets a pre-saturation area (pre-saturation area) in an area containing at least a part of an imaging area and performs imaging in a blood vessel imaging operation using a pre-saturation pulse for pre-exciting spins. | 09-09-2010 |
| 20100215228 | MEDICAL IMAGE DISPLAYING APPARATUS, MEDICAL IMAGE DISPLAYING METHOD, AND MEDICAL IMAGE DISPLAYING PROGRAM - A medical image display apparatus in accordance with the present invention includes a means ( | 08-26-2010 |
| 20100213937 | Magnetic Resonance Imaging Apparatus and Method - An magnetic resonance imaging apparatus includes: imaging means for dividing an object to be examined into a plurality of regions in a predetermined direction, setting images of slice positions for each of the regions so that the slice positions are continuous in each region, and imaging each of the regions while moving the object stepwise; and display means for acquiring a plurality of image data having three types of categories: the region, the slice position and the imaging sequence, and displaying the image data. | 08-26-2010 |
| 20100199208 | INFORMATION DISPLAY DEVICE - An information display device having an operability-improved trackball is provided. A control unit has a mechanism for displaying in such a manner that a second information display region is provided separately from a first information display region, an operation button region is arranged and displayed in a region between them, the second information display region is set as a cursor display prohibition region, and even if the operation is vigorously executed by operating the trackball, a cursor does not enter the second information display region but the cursor stops in the operation button region and one of the operation buttons in the operation button region is selected. | 08-05-2010 |
| 20100183117 | X-RAY GENERATING APPARATUS AND X-RAY CT APPARATUS USING THE SAME - There are provided an X-ray generating apparatus capable of switching X-ray beams of high energy and low energy to each other at high speed, and an X-ray CT apparatus capable of performing high-speed and high-quality multi-energy imaging by using the same. The X-ray generating apparatus is constructed by an X-ray tube | 07-22-2010 |
| 20100166149 | MECHANISM AND X-RAY TUBE APPARATUS - A mechanism to which a liquid-repellent structure hard to be exfoliated is applied. | 07-01-2010 |
| 20100156418 | MAGNETIC RESONANCE IMAGING APPARATUS AND MAGNETIC RESONANCE IMAGING METHOD - In order to stably obtain an even fat-suppressed image without reduction of an imaging efficiency and without being affected by unevenness of irradiation magnetic field of an RF pulse, when an imaging sequence having a first sequence part for suppressing a signal from a desired component of an examinee by applying a CHESS pulse and a second sequence part for measuring an echo signal from the examinee is repeated, the flip angle of the CHESS pulse is changed at plural times. In the case of multi-slice imaging, the flip angle of the CHESS pulse is changed in at lest two slice imaging. | 06-24-2010 |
| 20100134107 | MAGNETIC RESONANCE IMAGING SYSTEM AND METHOD - A magnetic resonance imaging system is characterized in that a control unit executes, as pulse sequences, a first sequence for obtaining data of a predetermined 2-dimensional region in a k-space and a second sequence for obtaining data required for reconstruction of an image by irradiating an object to be examined with an inversion recovery pulse and corrects the phase of the data obtained by the second sequence with the data of the 2-dimensional region obtained by the first sequence, and in that a signal processing unit reconstructs a real component image with corrected data. | 06-03-2010 |
| 20100104159 | X-RAY CT APPARATUS - An X-ray CT apparatus is configured capable of properly calculating a radiation dosed amount more approximating to an actually exposed radiation dose that includes scattering rays of an examined object from data measured at the scanning time. | 04-29-2010 |
| 20100087729 | MAGNETIC RESONANCE IMAGING APPARATUS AND MAGNETIC RESONANCE IMAGING METHOD - When multiple types of imaging are performed while moving a table on which a subject to be examined is placed, an imaging efficiency is improved and a high-quality image is obtained within a short time. Therefore, within a predetermined time interval such as an identical period of a periodic living body motion, a predetermined number of echo signals from each of the multiple types of imaging sequences are acquired and the table on which the subject to be examined is placed is moved. Along with the movement of the table, data items within the same range in the Ky-direction as to each of the imaging sequences are acquired, the moving speed of the table is controlled in such a manner that the acquired data items become continuous in the x-direction, and images are reconstructed based on the data items obtained respectively from the imaging sequences. | 04-08-2010 |
| 20100045293 | SUPERCONDUCTIVE MAGNETIC DEVICE, MAGNETIC RESONANCE IMAGING APPARATUS AND MAGNETIC FIELD INHOMOGENEITY COMPENSATION METHOD - The magnetic field homogeneity adjusting device ( | 02-25-2010 |
| 20100045113 | POWER SOURCE DEVICE AND MAGNETIC RESONANCE IMAGING APPARATUS USING THE SAME - A DC high voltage power source is constituted by an AC-DC converting means ( | 02-25-2010 |
| 20100036257 | ULTRASONIC PROBE AND ULTRASONIC DIAGNOSTIC APPARATUS USING THE SAME - Provided is an ultrasonic probe including: a cMUT chip having a plurality of vibration elements whose electromechanical coupling coefficient or sensitivity is changed according to a bias voltage and transmitting and receiving ultrasonic waves; an acoustic lens arranged above the cMUT chip: and a backing layer arranged below the cMUT chip. | 02-11-2010 |
| 20090306504 | IMAGE DISPLAYING METHOD AND MEDICAL IMAGE DIAGNOSTIC SYSTEM - The image display method comprises a three-dimensional image creating step that creates a three-dimensional image based on volume data; a cutting plane setting step that sets a cutting plane that cuts the three-dimensional image at an arbitrary position; and a positional relationship display image creating step that creates a positional relationship display image representing the mutual positional relationship between the three-dimensional image and the cutting plane, in which the opacity of the cutting plane in the positional relationship display image is adjusted so that a portion of the three-dimensional image that is hidden by the cutting plane is visually recognizable through the cutting plane in the positional relationship display image. | 12-10-2009 |
| 20090304242 | IMAGE ANALYZING SYSTEM AND METHOD - An image analysis system that analyzes an image of an object's organ having an anatomically symmetric shape includes:
| 12-10-2009 |
| 20090304141 | X-Ray CT Apparatus - The photon counting type detector | 12-10-2009 |
| 20090257553 | X-RAY CT APPARATUS AND IMAGE NOISE REDUCTION METHOD - An X-ray CT apparatus that can obtain a tomogram having high spatial resolution without increasing the effect of system noise and dosage is provided. The X-ray CT apparatus has an X-ray source for emitting X-ray, an X-ray detector having plural X-ray detecting elements that detect X-ray transmitted through an examinee as attenuation data and are arranged in a channel direction, a data combining unit for combining attenuation data of plural X-ray detecting elements in the channel direction to obtain composite data, a data decomposing unit for decomposing composite data to obtain respective decomposition data of the plural X-ray detecting elements, and an image re-constructing unit for re-constructing an image of the examinee by using the decomposition data. | 10-15-2009 |
| 20090245459 | X-RAY CT APPARATUS - In an X-ray CT apparatus comprised with an X-ray generating means, an X-ray detector disposed opposing to the X-ray generating means, a rotating means for rotating the X-ray generating means and the X-ray detector on a circular orbit of a same rotation center, a control means for controlling so as to irradiate X-rays from the X-ray generating means to an object laid along the rotation center and to detect by the X-ray detector X-ray dose penetrated through the object while rotating the X-ray generating means and the X-ray detector through the rotating means and a reconstruction computing means for performing reconstruction computation by making use of the data of the penetrated X-ray dose obtained under the control of the control means and acquiring a tomographic image, the X-ray CT apparatus further being comprised with an input means being inputted of information with respect to an target tissue of the object to be discriminated in the tomographic image and of an index with respect to correctness of the discrimination, and a scanning condition determining means for determining scanning conditions for discriminating the target tissue based on the index inputted by the inputting means. | 10-01-2009 |
| 20090216124 | ULTRASONIC DIAGNOSTIC APPARATUS AND IMAGE PROCESSING METHOD THEREOF - An ultrasonic diagnostic apparatus includes means for transmitting/receiving ultrasonic waves to/from an object to be examined and capturing a dynamic image of the object. | 08-27-2009 |
| 20090177078 | MAGNETIC RESONANCE IMAGING APPARATUS AND METHOD - In the continuous moving table imaging, high-speed imaging such as the echo planar method is implemented without deteriorating image quality, realizing a high-speed table movement, namely, high-speed imaging. | 07-09-2009 |
| 20090152171 | PROCESS FOR DIRECT COAL LIQUEFACTION - Process for direct coal liquefaction of coal, including: (1) preparing a coal slurry from raw coal; (2) preheating the coal slurry, then feeding it into reaction system to undergo liquefaction reaction; (3) separating reaction products in a separator to form a liquid phase and a gas phase, wherein the liquid phase is fractionated in an atmospheric tower into a light oil fraction and a bottom product; (4) feeding the atmospheric tower bottom product to a vacuum tower to separate into distillate and vacuum residue; (5) mixing the light oil fraction and the distillate to form a mixture, then feeding the mixture to a suspended bed hydrotreating reactor with forced circulation for hydrogenation; (6) fractionating hydrogenation products into oil products and a hydrogen donor recycling solvent. The process can operate long periods, with higher reactor efficiency and utilization factor, increased liquid oil yield and can supply high-quality feedstock for further processing. | 06-18-2009 |
| 20090149750 | Ultrasonic Diagnostic Apparatus - The present invention provides an ultrasonic diagnostic apparatus that is capable of displaying an elastic image, enabling an accurate and easy identification of tissue characteristics of a diagnostic part. Elasticity data regarding a test object is obtained based on a received signal of an ultrasonic probe, and an elastic image representing a distribution of the elasticity data of the test object is generated. A display mode setting means sets a display mode of the elastic image in such a manner that a different tissue can be identified based on a value of the elasticity data. In this case, the display mode is differentiated by the value of the elasticity data within one tissue. With this configuration, the tissue characteristics of the diagnostic part are identified by the elasticity data, and displayed in a different display mode, thereby displaying an elastic image identifiable accurately and easily. | 06-11-2009 |
| 20090091323 | MAGNETIC RESONANCE IMAGING APPARATUS AND METHOD - A magnetic resonance imaging apparatus comprises static magnetic field generating means for generating a static magnetic field in an imaging space, a gradient magnetic field generating means for generating a gradient magnetic field in the imaging space, high-frequency magnetic field generating means for generating a high-frequency magnetic field so as to induce nuclear magnetic resonance in a subject placed in the imaging space, signal receiving means for detecting a nuclear magnetic resonance signal from the subject, signal processing means for reconstructing an image by using the detected nuclear magnetic resonance signal, display means for displaying the image, a table for placing the subject thereon to dispose the subject in the imaging means, and table moving means for moving the table on which the subject is placed. | 04-09-2009 |
| 20090069688 | ULTRASOUND PROBE - There is provided an ultrasound probe including a first substrate having a silicon substrate and an ultrasound transmit-receive element, an acoustic lens disposed over an upper surface of the first substrate, and a damping layer disposed under the first substrate, in which a second substrate is disposed between a lower surface of the first substrate and an upper surface of the damping layer, and the second substrate is made of a material having approximately the same linear expansion coefficient and acoustic impedance as the silicon substrate of the first substrate. With this structure, it is possible to provide the ultrasound probe which can prevent damage to the silicon substrate due to temperature change and has excellent transmission/reception performance and structure reliability while reducing noise by reflected waves in transmission and reception. | 03-12-2009 |
| 20090066332 | MAGNETIC RESONANCE IMAGING APPARATUS AND GRADIENT MAGNETIC FIELD COIL - An MRI apparatus excellent in magnetic field generation efficiency is provided. According to this invention, a main coil ( | 03-12-2009 |
| 20090052754 | IMAGE DISPLAY DEVICE AND PROGRAM - An image display device includes: an input unit ( | 02-26-2009 |
| 20090046833 | X-RAY CT APPARATUS - [Problems] To provide an X-ray CT apparatus capable of easily comparing image quality supposed to be obtained when not using a X-ray dose optimization function and image quality supposed to be obtained when using the X-ray dose optimization function at the stage of scan planning.
| 02-19-2009 |
| 20080260227 | Ultrasonic Imaging Apparatus and Projection Image Generating Method - A three-dimensional ultrasonic image with which the positional relationship between tissues can be surely grasped is generated. Accordingly, an ultrasonic imaging apparatus and a projection image generating method according to the present invention acquire first three-dimensional image data and second three-dimensional image data, generate a first projection image on the basis of at least a part of the first three-dimensional image data and the second three-dimensional image data, and generate a second projection image on the basis of at least a part of the second three-dimensional image data and the first three-dimensional imaged data. | 10-23-2008 |
| 20080231272 | Magnetic Resonance Imager - Provided is a magnetic resonance imager capable of efficiently suppressing artifacts in radial scanning that is short of the number of echoes. | 09-25-2008 |
