Patent application number | Description | Published |
20120076261 | RADIOLOGICAL IMAGE DISPLAYING APPARATUS AND METHOD - Provided is a technique of making auxiliary lines easy to view when displaying a stereoscopic image using radiological images. Auxiliary lines are added on two radiological images for displaying a stereoscopic image, respectively. The auxiliary lines are made up of a plurality of grids appearing to be arranged in the depth direction, and, on the auxiliary lines that constitute a grid on a rear side, intersections with the auxiliary lines that constitute a grid on a front side and the near portion of the intersections are removed. In this way, the intersections of the grids can be viewed easily. | 03-29-2012 |
20120076388 | RADIOLOGICAL IMAGE DISPLAYING APPARATUS AND METHOD - Provided is a technique of displaying auxiliary lines so as to make it easy to catch the sense of depth when displaying a stereoscopic image using radiological images. Auxiliary lines are added on two radiological images for displaying a stereoscopic image, respectively. The auxiliary lines are made up of a plurality of grids appearing to be arranged in the depth direction, and the display modes of adjacent grids are different. For example, at least one of the colors, thicknesses, kinds, luminance levels, blinking methods, and directions of the lines of the adjacent grids are different. | 03-29-2012 |
20120082298 | RADIOLOGICAL IMAGE DISPLAYING DEVICE AND METHOD - A problem at the time of stereoscopic viewing of auxiliary lines for making a three-dimensional effect easy to figure out when displaying a stereoscopic image using a radiological image is solved. Auxiliary lines are added to two radiological images for displaying a stereoscopic image. The auxiliary lines are formed by a plurality of grids arrayed so as to be viewed in the depth direction. Lines which form the grids are disposed at positions, which are distant from positions vertically facing a focal point at the time of radiographing, on the radiological images. In addition, the lines which form the grids may be disposed at positions distant from a position, which bisects positions vertically facing a plurality of focal points at the time of radiographing when acquiring the radiological images, on each of the radiological images. | 04-05-2012 |
20130058453 | RADIOGRAPHY SYSTEM AND RADIATION SOURCE CONTROLLER - A source controller unit for controlling an x-ray source is provided with a detection signal interface for receiving detection signals from detective pixels of an electronic cassette or an integrated value of the detection signals only, or an interface for receiving a radiation stopping signal only. The source controller unit receives other radiation signals than the radiation stopping signal, such as a radiation admitting signal, through a radiation signal interface. The source controller unit uses the detection signals, the integrated value thereof, or the radiation stopping signal as exposure control signals for stopping radiation from the x-ray source. Since the exposure control signals are received on the specific interface therefor, the source controller unit does not need signal sorting operation nor receive different kinds of signals at the same time, improving the speed of radiation stopping procedure. | 03-07-2013 |
20130121464 | RADIATION IMAGING APPARATUS AND CONTROL METHOD THEREOF, AND RADIATION IMAGING SYSTEM - Besides normal pixels, a plurality detection pixels are arranged in an imaging surface of an FPD. In preliminary imaging, X-rays are emitted to an imaged body portion of a patient. The detection pixels receive the X-rays passed through the body portion, and output AEC detection signals. If an integral value of the AEC detection signals has reached a threshold value, X-ray emission is stopped and the preliminary imaging is completed. A main exposure condition determination unit determines a main irradiation time, being an irradiation time with the X-rays during the main imaging, based on an irradiation time with the X-rays during the preliminary imaging and the integral value of the AEC detection signals. The main imaging is performed using the main irradiation time. The normal pixels continue a charge accumulation operation over the preliminary imaging and the main imaging to produce an X-ray image for use in diagnosis. | 05-16-2013 |
20130148782 | RADIATION IMAGING APPARATUS AND OPERATION METHOD THEREOF - An X-ray imaging system performs pre-exposure and main exposure to take a single X-ray image. In the pre-exposure, an AEC circuit reads out a dose detection signal outputted from a detection pixel, and compares an integral value of the dose detection signal with a threshold value. When the integral value has reached the threshold value, the AEC circuit stops X-ray emission. A main exposure condition determination unit determines main irradiation time, being one item of a main exposure condition, based on irradiation time in the pre-exposure, an integral dose in the pre-exposure, and a necessary dose required for production of the X-ray image. After that, the main exposure is performed immediately with the determined main irradiation time. Normal pixels perform a charge accumulation operation continuously from the start of the pre-exposure to the end of the main exposure, and the X-ray image is produced from accumulated electric charge. | 06-13-2013 |
20130148784 | RADIOGRAPHIC DEVICE, RADIOGRAPHIC SYSTEM, CONTROL METHOD AND RECORDING MEDIUM FOR RADIOGRAPHIC DEVICE - An AEC unit of an electronic cassette sets a dose target value and a short-circuited pixel used for AEC based on a radiographing condition. When a control unit of the electronic cassette detects start of irradiation of X rays, the AEC unit starts integration of a cumulative dose of X rays which are incident to a target region based on a dose detection signal output by the short-circuited pixel. The AEC unit predicts a stop timing at the time point t1, waits until the time point t2 which is a predetermined time earlier than a scheduled stop time, and sends a stop timing notification to an X-ray generation device at the time point t2. When the stop timing notification is received, a X-ray source control device immediately inputs an irradiation stop command so as to stop an operation of an X-ray source. | 06-13-2013 |
20130251106 | RADIATION IMAGE DETECTING DEVICE AND CONTROL METHOD THEREOF, AND RADIATION IMAGING SYSTEM - An AEC section of an electronic cassette includes a measurement area setting circuit for setting a measurement area in an imaging surface. The measurement area setting circuit is switchable between a specified area mode and an automatic area setting mode. In the specified area mode, a first measurement area is set up in a position predetermined in accordance with a body part to be imaged. In the automatic area setting mode, a second measurement area is set up based on the distribution of an X-ray dose measured by measuring pixels. X-ray emission time is shortened in the specified area mode, because the setting of the first measurement area is quickly performed. The automatic area setting mode eliminates the need for troublesome positioning between a patient and an FPD. | 09-26-2013 |
20130259196 | RADIATION IMAGING SYSTEM AND RADIATION IMAGE DETECTOR - An X-ray imaging system has two types of electronic cassettes and one type of IP cassette. Upon entering a body portion to be imaged, an input and output controller retrieves from an imaging condition table of the IP cassette an imaging condition corresponding to the body portion as a reference imaging condition. An imaging condition calculator multiplies reference exposure time of the reference imaging condition by a sensitivity coefficient of each electronic cassette, to calculate an imaging condition to be applied in using each electronic cassette. An input and output controller displays the imaging conditions of the electronic cassettes and the IP cassette and choice buttons for choosing one of the electronic cassettes and the IP cassette in a list form on a monitor. | 10-03-2013 |
20130293464 | RADIOGRAPHIC IMAGE DISPLAY DEVICE AND METHOD FOR DISPLAYING RADIOGRAPHIC IMAGE - When displaying a stereo image of radiographic images, troublesome work for indicating an abnormal shadow with a three-dimensional cursor is reduced. An abnormal shadow detection unit | 11-07-2013 |
20140028717 | RADIATION IMAGE DISPLAYING APPARATUS AND RADIATION IMAGE DISPLAYING METHOD - An abnormal shadow detection section detects an abnormal shadow from each of two radiation images for displaying a stereoscopic image, obtained by imaging a subject from two different directions. A display control section determines all available combinations of abnormal shadows as abnormal shadows corresponding to each other between two radiation images in the case that a plurality of abnormal shadows are detected and for sequentially applying cursors to abnormal shadows of the determined combinations in two radiation images to sequentially display stereoscopic images marked with the cursors, in which the abnormal shadows are marked with the cursors, on the display section based on two radiation images marked with the cursors. | 01-30-2014 |
20140056408 | REGULATING UNIT AND RADIOGRAPHIC IMAGING SYSTEM - An X-ray imaging system or radiographic imaging system includes a radiation generating apparatus and a radiographic imaging apparatus. An ionization chamber device is external to the radiographic imaging apparatus, for detecting a dose of the radiation transmitted through an object. Dose sensors are incorporated in the radiographic imaging apparatus, for detecting a dose of the radiation transmitted through the object. An exposure control unit is disposed with the radiation generating apparatus, for shutting off application of the radiation from the radiation generating apparatus according to a detection signal from the ionization chamber device or dose sensors. The ionization chamber device is communicably coupled with the radiation generating apparatus. An operating state of the ionization chamber device and dose sensors is acquired by monitoring, so failure of simultaneous inputting of their detection signals to the exposure control unit is prevented. | 02-27-2014 |
20140177798 | RADIATION IMAGING SYSTEM, COMMUNICATION METHOD OF RADIATION IMAGING SYSTEM, AND RADIOGRAPHIC IMAGE DETECTING DEVICE - A communication section having a relatively high communication speed is used for communicating a detection signal or an emission stop signal between a source control device and an electronic cassette. The detection signal is outputted from a detection pixel of the electronic cassette. The emission stop signal depends on a comparison result between an integrated value of the detection signal and an emission stop threshold value. On the other hand, a wireless communication section having a lower communication speed than that of the detection signal and the emission stop signal is used for communicating image data and the like between the electronic cassette and a console. | 06-26-2014 |
20140205066 | RADIATION IMAGING SYSTEM AND OPERATING METHOD THEREOF, AND RADIATION IMAGE DETECTING DEVICE - A measurement area selection circuit has an irradiation field determination unit, an object area determination unit, and a measurement area determination unit. The irradiation field determination unit determines an irradiation field of an imaging surface of an FPD. The object area determination unit determines an object area from a comparison result between a first expected received dose of a directly exposed area and dose detection signals of detection pixels situated in the irradiation field. The measurement area determination unit determines a measurement area, which corresponds to a region of interest, from a comparison result between a second expected received dose of the measurement area and the dose detection signals of the detection pixels situated in the irradiation area and the object area. The dose detection signals of the detection pixels situated in the measurement area are used for AEC. | 07-24-2014 |
20140211922 | RADIATION IMAGING SYSTEM AND CONTROL METHOD THEREOF, AND RADIATION IMAGE DETECTING DEVICE - Upon input of a synchronization signal, which indicates a start of an X-ray emission, from a source control unit for controlling an X-ray source, an electronic cassette makes an FPD start an accumulation operation and measurement of an X-ray dose. The electronic cassette and a console command their communicators to stop communication of any signal other than a stop signal, which stops the X-ray emission from the X-ray source, during the accumulation operation of the FPD. As soon as the X-ray dose has reached a predetermined threshold value, the electronic cassette transmits the stop signal to the source control unit through the console. A delay in transmission of the stop signal due to communication congestion or signal collision does not occur, because the electronic cassette and the console stop the communication of the signal other than the stop signal. | 07-31-2014 |
20150030129 | RADIATION IMAGE DETECTING DEVICE AND RADIATION IMAGING SYSTEM - A detection panel has a plurality of pixels for accumulating electric charge by receiving X-rays, and a plurality of detection pixels for detecting an X-ray dose in an imaging surface. The detection pixels are disposed periodically with leaving space. A grid, which has X-ray absorbing portions and X-ray transmitting portions alternately and periodically arranged in a first direction, is disposed in a position opposed to the imaging surface. Since an arrangement period of the detection pixels in the first direction is different from an arrangement period of the X-ray absorbing portions, an output value of each detection pixel is distributed and hence the average of the output values has a reduced variation range. | 01-29-2015 |
20150036802 | RADIATION IMAGE DETECTING DEVICE AND RADIATION IMAGING SYSTEM - In a detection panel, plural pixels which receive X-ray and accumulate electric charge and plural measuring pixels which detect X-ray dose are provided on an imaging surface. The plural measuring pixels are arranged periodically with an interval. In a position facing to the imaging surface, there is a grid where X-ray absorbing sections and X-ray transmitting sections are arranged in a periodic alternating manner in a first direction. Since the arrangement period of the measuring pixels in the first direction is different from a fluctuation period of grid detection signals obtained when the grid is photographed by the detection panel, output values of the plurality of measuring pixels disperse and a fluctuation range of average values is suppressed. | 02-05-2015 |
20150055753 | RADIATION IMAGING SYSTEM AND OPERATING METHOD THEREOF - A console acquires a displacement amount of an X-ray source from a displacement amount detector. In the case where an electronic cassette having an image detector is not appropriately positioned with respect to a body part to be imaged, a position of the X-ray source is changed in accordance with a position of the body part to be imaged. A dose measurement field position determining unit specifies a current relative position between the X-ray source and the electronic cassette having the image detector based on a displacement amount. The dose measurement field position determining unit determines a position of a dose measurement field based on the specified current relative position. | 02-26-2015 |
Patent application number | Description | Published |
20120076262 | RADIOLOGICAL IMAGE DISPLAYING DEVICE AND METHOD - The stereoscopic effect of auxiliary lines for making a stereoscopic effect easy to figure out is matched with the stereoscopic effect of a subject included in a stereoscopic image when displaying a stereoscopic image using a radiological image. Auxiliary lines are added to two radiological images for displaying a stereoscopic image. The auxiliary lines are formed by arraying a plurality of grids so as to be viewed in the depth direction. The auxiliary lines are generated according to the compression thickness when compressing the subject to radiograph the subject, the radiographing technique, and the compression pressure when compressing the subject to radiograph the subject. | 03-29-2012 |
20120300899 | IMAGE PROCESSING DEVICE, RADIOGRAPHIC IMAGE CAPTURE SYSTEM, IMAGE PROCESSING METHOD, AND IMAGE PROCESSING PROGRAM STORAGE MEDIUM - An image processing device includes a tomographic image generating section that acquires generates tomographic images, a display processing section that displays a second radiographic image, and detection section. If a region of interest is specified on the second radiographic image, the detection section performs image analysis by comparing the region of interest with corresponding regions that are regions in the tomographic images corresponding to the region of interest, and detects a tomographic image including a corresponding region that is similar to the region of interest. If a position of interest is specified on the second radiographic image, the detection section performs image analysis by comparing the position of interest with corresponding positions that are positions in the tomographic images corresponding to the position of interest, and detects a tomographic image including a corresponding position that is similar to the position of interest. | 11-29-2012 |
20120302873 | IMAGE PROCESSING DEVICE, RADIOGRAPHIC IMAGE CAPTURE SYSTEM, IMAGE PROCESSING METHOD AND IMAGE PROCESSING PROGRAM STORAGE MEDIUM - An image processing device includes an image generation section that generates plural tomographic images; a first specification section that displays at least one tomographic image in which an object of interest has been captured, and that allows a user to specify a position of the object of interest; a second specification section that displays at least one tomographic image including a region from the object of interest to a side from which a biopsy needle is to be inserted, and allows the user to specify a desired pass-through region of the biopsy needle and/or a non-pass-through region; a detection section that detects a path of the biopsy needle passing through the pass-through region and reaching the object of interest; and a warning section for issuing a warning if the detected path is outside a predetermined movement range of the biopsy needle. | 11-29-2012 |
20130083898 | RADIATION IMAGING APPARATUS - A cassette holder of an imaging stand is provided with first and second catch members for catching and holding an electronic cassette from above and below. The first catch member has a multi connector connected to a multi terminal of the electronic cassette. The multi connector is offset with respect to a center line of an imaging surface of the cassette holder. The multi terminal is offset with respect to a center line of an irradiation surface of the electronic cassette in the same direction by the same amount as those of the multi connector. In a state where said electronic cassette mounted on a tray is loaded into the cassette holder, the center line of the irradiation surface coincides with the center line of the imaging surface. | 04-04-2013 |
20140125641 | DISPLAY CONTROL APPARATUS AND DISPLAY CONTROL METHOD - A display control apparatus includes a reception frequency acquisition unit configured to acquire a reception frequency, a reception quality acquisition unit configured to acquire reception quality, a first data acquisition unit configured to acquire first data at a reception frequency, a second data acquisition unit configured to acquire second data from a signal of a reception frequency, a display control unit configured to control display of first data until acquisition of second data after acquisition of first data, and a display unit configured to display first data and/or second data in accordance with control of a display control unit. | 05-08-2014 |