Patent application number | Description | Published |
20090232270 | MULTI X-RAY GENERATING APPARATUS AND X-RAY IMAGING APPARATUS - A multi X-ray generating apparatus which has a plurality of electron sources arranged two-dimensionally and targets arranged at positions opposite to the electron sources includes a multi electron source which includes a plurality of electron sources and outputs electrons from driven electron sources by selectively driving a plurality of electron sources in accordance with supplied driving signals, and a target unit which includes a plurality of targets which generate X-rays in accordance with irradiation of electrons output from the multi electron source and outputs X-rays with different radiation qualities in accordance with the generation locations of X-rays. The generation locations and radiation qualities of X-rays from the target unit are controlled by selectively driving the electron sources of the multi electron source. | 09-17-2009 |
20090232272 | X-RAY IMAGING APPARATUS AND CONTROL METHOD THEREOF - An X-ray imaging apparatus includes a multi X-ray generating unit in which multiple X-ray foci are disposed in two-dimensional form at a predetermined pitch in a first direction, and a slit unit having multiple slit members each disposed opposite to its respective X-ray focus. Each slit member has multiple slits arranged in the first direction, and each of the slits forms a slice-formed X-ray beam whose lengthwise direction is a second direction that is different from the first direction. The two-dimensional detection unit detects the X-ray intensity of the formed X-ray beams at the detection surface. The X-ray imaging apparatus executes X-ray imaging at multiple positions while moving the multi X-ray generating unit and the slit unit in the first direction by the amount of the predetermined pitch, while keeping the relative positional relationship therebetween, and reconstructs an X-ray image based on the obtained X-ray intensity. | 09-17-2009 |
20090257559 | X-RAY MOVING IMAGE RADIOGRAPHING APPARATUS - An X-ray moving image radiographing apparatus includes an X-ray detector configured to detect an X-ray transmitting through a subject to acquire a subject image, an image processing unit configured to process an X-ray radiographic image output from the X-ray detector, and a control unit configured to capture a mask image by selectively scanning X-ray focal positions of an X-ray source which has a plurality of X-ray focal points so that an X-ray incident angle varies with respect to a target point of the subject, and to capture a moving image after a predetermined work is performed on the subject by selectively scanning X-ray focal positions of the X-ray source similar to the scanning operation used to capture the mask image. | 10-15-2009 |
20090316860 | MULTI X-RAY GENERATOR AND MULTI X-RAY IMAGING APPARATUS - A compact apparatus can form multi X-ray beams with good controllability. Electron beams (e) emitted from electron emission elements ( | 12-24-2009 |
20100008465 | RADIOGRAPHIC IMAGING CONTROL APPARATUS USING MULTI RADIATION GENERATING APPARATUS - A control apparatus for controlling a multi radiation generating apparatus having a plurality of radiation generating devices which irradiate a two-dimensional sensor with radiation sets the intensity of radiation with which the plurality of radiation generating devices irradiate the two-dimensional sensor based on information about a part or physique of a patient, which is input by an input device. | 01-14-2010 |
20100111250 | MAMMOGRAPHY APPARATUS - A mammography apparatus includes a detector that detects X-rays transmitted through a breast, and an optically transparent or semitransparent pressing panel for pressing the breast. The apparatus further includes a near infrared ray source that provided between the X-ray source and the pressing panel and arranged in a two-dimensional shape in alignment with the pressing panel, and that is movable between a first position in close contact with the pressing panel and a second position outside an X-ray image capture region. Near infrared image capture is carried out using the near infrared ray source by causing the near infrared ray source to be in the first position, and the near infrared ray source is caused to retract to the second position when carrying out X-ray image capture using the X-ray source. | 05-06-2010 |
20100246759 | RADIATION IMAGING APPARATUS AND CONTROL METHOD FOR THE SAME - A radiation imaging apparatus that captures radiographic images includes a radioactive ray generating unit configured to irradiate a subject with a plurality of radioactive rays generated by a plurality of electron sources. A radioactive ray detection unit captures a plurality of first radiographic images based on detection of the plurality of radioactive rays that have passed through the subject at different irradiation angles. Area specification unit specifies an object area using the plurality of first radiographic images captured by the radioactive ray detection unit, and a determination unit determines an electron source to be driven from the plurality of electron sources based on the object area specified by the area specification unit, such that a second radiographic image is captured based on the radioactive rays generated by the electron source determined by the determination unit. | 09-30-2010 |
20100266097 | MULTI X-RAY IMAGING APPARATUS AND CONTROL METHOD THEREFOR - An X-ray imaging apparatus includes a multi X-ray source which includes a plurality of X-ray focuses to generate X-rays by irradiating X-ray targets with electron beams, a detector which detects X-rays which have been emitted from the multi X-ray source and have reached a detection surface, and a moving mechanism for moving the multi X-ray source within a plane facing the detection surface. The X-ray imaging apparatus acquires a plurality of X-ray detection signals from the detector by causing the multi X-ray source to perform X-ray irradiation while shifting the positions of a plurality of X-ray focuses which the detector has relative to the detection surface by moving the multi X-ray source using the moving mechanism. The apparatus then generates an X-ray projection image based on the plurality of X-ray detection signals acquired by the detector. | 10-21-2010 |
20100303207 | RADIATION IMAGING APPARATUS AND METHOD FOR CONTROLLING RADIATION IMAGING APPARATUS - A radiation imaging apparatus includes a C-arm, a radiation source configured to irradiate a subject with radiation, and a two-dimensional detection device configured to detect the radiation having passed through the subject. The radiation source and the two-dimensional detection device are arranged to face each other across the C-arm, and at least one of the radiation source and the two-dimensional detection device is attached to the C-arm via a sub-arm that is rotatably connected to a frame of the C-arm. | 12-02-2010 |
20100310051 | X-RAY GENERATOR, X-RAY IMAGING APPARATUS, AND CONTROL METHODS THEREFOR - In an X-ray generator which includes an electron beam generating unit which has a plurality of electron emitters and generates an electron beam corresponding to driven electron emitters, and a target electrode which generates X-rays with the irradiation position of an electron beam generated by the electron beam generating unit being an X-ray focus, the X-ray focus shape formed by a set of X-ray focuses on the target electrode is controlled by individually controlling driving of the plurality of electron emitters. | 12-09-2010 |
20100329416 | X-RAY IMAGING APPARATUS, METHOD OF CONTROLLING THE SAME, AND COMPUTER PROGRAM - An X-ray imaging apparatus includes an X-ray source including a plurality of X-ray focuses, an X-ray detector which detects X-rays emitted from the X-ray focuses and transmitted through an object, and a control unit which controls the X-ray source and the X-ray detector. The X-ray imaging apparatus selects a pair of X-ray focuses, of X-ray focuses of the plurality of X-ray focuses which project images on the X-ray detector through a region of interest which is an imaging region of the object, from which emitted X-rays define an intersecting angle coinciding with a predetermined angle in the region of interest, and decides an X-ray focus to be used for imaging from X-ray focuses between the selected pair of X-ray focuses. An X-ray image is captured by emitting X-rays from the decided X-ray focus and causing the X-ray detector to detect the X-rays. | 12-30-2010 |
20110058727 | RADIATION IMAGING APPARATUS, RADIATION IMAGING METHOD, AND PROGRAM - A radiation imaging apparatus comprising: an image capture unit capturing a radiation image; a first decision unit deciding, as a first region of interest, a region of interest from a region of a first radiation image; a first extraction unit extracting the first region of interest from the first radiation image; a form decision unit deciding a first form from the first region of interest; a first display unit enlarging and displaying the first region of interest; a first search unit searching a region of a second radiation image for a second form similar to the first form; a second decision unit deciding a second region of interest from the second radiation image so as to include the second form; a second extraction unit extracting the second region of interest from the second radiation image; and a second display unit enlarging and displaying the second region of interest. | 03-10-2011 |
20110188628 | X-RAY IMAGING APPARATUS, METHOD OF CONTROLLING THE SAME, AND COMPUTER PROGRAM - An X-ray imaging apparatus includes an X-ray source including a plurality of X-ray focuses, an X-ray detector which detects X-rays emitted from the X-ray focuses and transmitted through an object, and a control unit which controls the X-ray source and the X-ray detector. The X-ray imaging apparatus selects a pair of X-ray focuses, of X-ray focuses of the plurality of X-ray focuses which project images on the X-ray detector through a region of interest which is an imaging region of the object, from which emitted X-rays define an intersecting angle coinciding with a predetermined angle in the region of interest, and decides an X-ray focus to be used for imaging from X-ray focuses between the selected pair of X-ray focuses. An X-ray image is captured by emitting X-rays from the decided X-ray focus and causing the X-ray detector to detect the X-rays. | 08-04-2011 |
20110216884 | X-RAY IMAGING APPARATUS - An X-ray imaging apparatus is provided with a multi X-ray source and a collimator in which a plurality of slits for X-rays to pass through are two-dimensionally formed, the size and position of the slits being adjustable. A control unit, as a first control mode, controls the size and position of the slits to move an examination region in parallel, when an X-ray source is changed to a different X-ray source, such that the examination directions are parallel before and after the change. Also, the control unit, as a second control mode, controls the size and position of the slits to rotate the examination direction, when an X-ray source is changed to a different X-ray source, such that the center of the examination regions is the same before and after the change. | 09-08-2011 |
20110222652 | MAMMOGRAPHY APPARATUS - A mammography apparatus includes a detector that detects X-rays transmitted through a breast, and an optically transparent or semitransparent pressing panel for pressing the breast. The apparatus further includes a near infrared ray source that provided between the X-ray source and the pressing panel and arranged in a two-dimensional shape in alignment with the pressing panel, and that is movable between a first position in close contact with the pressing panel and a second position outside an X-ray image capture region. Near infrared image capture is carried out using the near infrared ray source by causing the near infrared ray source to be in the first position, and the near infrared ray source is caused to retract to the second position when carrying out X-ray image capture using the X-ray source. | 09-15-2011 |
20110235783 | X-RAY GENERATING APPARATUS AND CONTROL METHOD THEREOF - An X-ray generating apparatus controls driving of an X-ray tube. The X-ray tube includes an electron source emitting electrons due to application of a voltage, a transmission-type target generating an X-ray due to collision of electrons emitted from the electron source, and a shield member disposed between the electron source and the transmission-type target, the shield member having an opening that electrons emitted from the electron source pass through, and blocking an X-ray that scatters toward the electron source. When generating the X-ray, application of a voltage to the transmission-type target is started, and emission of electrons from the electron source is caused after passage of a predetermined period indicating a time period from starting voltage application until the transmission-type target reaches a predetermined voltage. When stopping X-ray generation, application of the voltage to the transmission-type target is stopped after stopping the emission of electrons from the electron source. | 09-29-2011 |
20110249796 | MULTI X-RAY IMAGING APPARATUS AND CONTROL METHOD THEREFOR - An X-ray imaging apparatus includes a multi X-ray source which includes a plurality of X-ray focuses to generate X-rays by irradiating X-ray targets with electron beams, a detector which detects X-rays which have been emitted from the multi X-ray source and have reached a detection surface, and a moving mechanism for moving the multi X-ray source within a plane facing the detection surface. The X-ray imaging apparatus acquires a plurality of X-ray detection signals from the detector by causing the multi X-ray source to perform X-ray irradiation while shifting the positions of a plurality of X-ray focuses which the detector has relative to the detection surface by moving the multi X-ray source using the moving mechanism. The apparatus then generates an X-ray projection image based on the plurality of X-ray detection signals acquired by the detector. | 10-13-2011 |
20110255664 | X-RAY SOURCE AND X-RAY PHOTOGRAPHING APPARATUS INCLUDING THE SOURCE - An X-ray source includes an electron-beam generating unit that generates an electron beam, and a transmission type target electrode to be irradiated with the electron beam to generate X-ray radiation. A plurality of convex portions each having an inclined surface with respect to an incident direction of the electron beam is formed on a surface of the transmission type target electrode. | 10-20-2011 |
20120163533 | RADIATION IMAGING APPARATUS AND CONTROL METHOD FOR THE SAME - A radiation imaging apparatus that captures radiographic images includes a radioactive ray generating unit configured to irradiate a subject with a plurality of radioactive rays generated by a plurality of electron sources. A radioactive ray detection unit captures a plurality of first radiographic images based on detection of the plurality of radioactive rays that have passed through the subject at different irradiation angles. Area specification unit specifies an object area using the plurality of first radiographic images captured by the radioactive ray detection unit, and a determination unit determines an electron source to be driven from the plurality of electron sources based on the object area specified by the area specification unit, such that a second radiographic image is captured based on the radioactive rays generated by the electron source determined by the determination unit. | 06-28-2012 |
20120277581 | X-RAY MOVING IMAGE RADIOGRAPHING APPARATUS - An X-ray moving image radiographing apparatus includes an X-ray detector configured to detect an X-ray transmitting through a subject to acquire a subject image, an image processing unit configured to process an X-ray radiographic image output from the X-ray detector, and a control unit configured to capture a mask image by selectively scanning X-ray focal positions of an X-ray source which has a plurality of X-ray focal points so that an X-ray incident angle varies with respect to a target point of the subject, and to capture a moving image after a predetermined work is performed on the subject by selectively scanning X-ray focal positions of the X-ray source similar to the scanning operation used to capture the mask image. | 11-01-2012 |
20120314837 | RADIATION TRANSMISSION TYPE TARGET - A radiation transmission type target to be used for a radiation tube has a target metal | 12-13-2012 |
20120318990 | RADIATION DETECTION PANEL AND RADIATION IMAGING APPARATUS - A radiation detection panel including a photoelectric conversion element that detects fluorescence by a phosphor layer, the radiation detection panel comprising: a base material for supporting the phosphor layer, including the photoelectric conversion element; and a protective film for covering the phosphor layer, wherein the phosphor layer is formed on a surface and at least one lateral face of the base material, and an angle between the surface and the at least one lateral face is less than 90 degrees. | 12-20-2012 |
20130003920 | X-RAY IMAGING APPARATUS, METHOD OF CONTROLLING THE SAME, AND COMPUTER PROGRAM - An X-ray imaging apparatus includes an X-ray source including a plurality of X-ray focuses, an X-ray detector which detects X-rays emitted from the X-ray focuses and transmitted through an object, and a control unit which controls the X-ray source and the X-ray detector. The X-ray imaging apparatus selects a pair of X-ray focuses, of X-ray focuses of the plurality of X-ray focuses which project images on the X-ray detector through a region of interest which is an imaging region of the object, from which emitted X-rays define an intersecting angle coinciding with a predetermined angle in the region of interest, and decides an X-ray focus to be used for imaging from X-ray focuses between the selected pair of X-ray focuses. An X-ray image is captured by emitting X-rays from the decided X-ray focus and causing the X-ray detector to detect the X-rays. | 01-03-2013 |
20130003927 | X-RAY IMAGING APPARATUS - An X-ray imaging apparatus is provided. The apparatus includes an X-ray sensor unit that detects X-rays, and a control unit that controls driving of an X-ray generator and the X-ray sensor unit. The control unit performs alignment imaging for imaging a still image of a subject. The still image is used as a reference for alignment of at least one of the X-ray generator and the X-ray sensor unit. After the alignment imaging, the control unit performs main imaging for imaging a moving image of the subject. The alignment imaging and the main imaging are performed under the same driving condition of the X-ray sensor unit. | 01-03-2013 |
20130028499 | RADIOGRAPHIC APPARATUS AND CONTROL METHOD THEREFOR - A control portion ( | 01-31-2013 |
20130039464 | RADIATION IMAGING APPARATUS AND METHOD FOR CONTROLLING RADIATION IMAGING APPARATUS - A radiation imaging apparatus includes a C-arm, a radiation source configured to irradiate a subject with radiation, and a two-dimensional detection device configured to detect the radiation having passed through the subject. The radiation source and the two-dimensional detection device are arranged to face each other across the C-arm, and at least one of the radiation source and the two-dimensional detection device is attached to the C-arm via a sub-arm that is rotatably connected to a frame of the C-arm. | 02-14-2013 |
20130163719 | STEREO X-RAY IMAGING APPARATUS AND STEREO X-RAY IMAGING METHOD - Provided is a stereo imaging apparatus that generates X-rays from a plurality of different focal positions and that acquires a plurality of X-ray images from an X-ray detector, the stereo imaging apparatus including X-ray generation controlling means for controlling irradiated areas of X-rays so that an irradiated area in a detection area of the X-ray detector based on X-rays applied from a first focal position is included in an irradiated area in the detection area based on X-rays applied from a second focal position. | 06-27-2013 |
20130197342 | OBJECT INFORMATION ACQUIRING APPARATUS - The present invention employs an object information acquiring apparatus including a plurality of light irradiators irradiating light from a light source to an object; an intensity modulator modulating intensity of the irradiated light for each light irradiator; a plurality of acoustic detectors detecting an acoustic wave generated from the object; and an information processor producing internal characteristic information of the object by using the acoustic wave, wherein the information processor controls a weight of each acoustic detector in production of the characteristic information, based on the intensity of light in each light irradiator. | 08-01-2013 |
20130243156 | RADIATION IMAGING APPARATUS - A radiation imaging apparatus according to the present invention includes a radiation source, a reflective structure where at least three reflective substrates are arranged with an interval and radiations being incident into a plurality of passages whose both sides are put between the reflective substrate are reflected and parallelized by the reflective substrate at both sides of the passage to be emitted from the passage, a radiation detector, and an image construction unit that constructs an image of an object based on an intensity of the radiation which is emitted from each of the passages, transmits the object and is detected by the radiation detector. When one edge of the reflective structure is an inlet of the radiation and the other edge is an outlet of the radiation, a pitch of the reflective substrates at the outlet is larger than a pitch at the inlet. | 09-19-2013 |
20130251107 | X-RAY GENERATING APPARATUS AND CONTROL METHOD THEREOF - An X-ray generating apparatus controls driving of an X-ray tube. The X-ray tube includes an electron source emitting electrons due to application of a voltage, a transmission-type target generating an X-ray due to collision of electrons emitted from the electron source, and a shield member disposed between the electron source and the transmission-type target, the shield member having an opening that electrons emitted from the electron source pass through, and blocking an X-ray that scatters toward the electron source. When generating the X-ray, application of a voltage to the transmission-type target is started, and emission of electrons from the electron source is caused after passage of a predetermined period indicating a time period from starting voltage application until the transmission-type target reaches a predetermined voltage. When stopping X-ray generation, application of the voltage to the transmission-type target is stopped after stopping the emission of electrons from the electron source. | 09-26-2013 |
20130294582 | X-RAY IMAGING APPARATUS - An X-ray imaging apparatus is provided with a multi X-ray source and a collimator in which a plurality of slits for X-rays to pass through are two-dimensionally formed, the size and position of the slits being adjustable. A control unit, as a first control mode, controls the size and position of the slits to move an examination region in parallel, when an X-ray source is changed to a different X-ray source, such that the examination directions are parallel before and after the change. Also, the control unit, as a second control mode, controls the size and position of the slits to rotate the examination direction, when an X-ray source is changed to a different X-ray source, such that the center of the examination regions is the same before and after the change. | 11-07-2013 |
20130322594 | STEREOSCOPIC X-RAY IMAGING APPARATUS - A stereoscopic X-ray imaging apparatus includes: right and left X-ray tubes; a diaphragm unit in which right and left openings are formed through which X-rays radiated by the right and left X-ray tubes pass, respectively; an X-ray sensor on which the X-ray radiated by each of the right and left X-ray tubes is projected; a controller configured to control positions and sizes of the right and left openings; and right and left visible light sources configured to radiate a visible light to the X-ray sensor in the same area as each of the right and left X-ray tubes through each of the right and left openings. Spectra of the visible light emitted by the right and left visible light sources are different from each other. | 12-05-2013 |
20140296717 | MAMMOGRAPHY APPARATUS - A mammography apparatus includes a detector that detects X-rays transmitted through a breast, and an optically transparent or semitransparent pressing panel for pressing the breast. The apparatus further includes a near infrared ray source that provided between the X-ray source and the pressing panel and arranged in a two-dimensional shape in alignment with the pressing panel, and that is movable between a first position in close contact with the pressing panel and a second position outside an X-ray image capture region. Near infrared image capture is carried out using the near infrared ray source by causing the near infrared ray source to be in the first position, and the near infrared ray source is caused to retract to the second position when carrying out X-ray image capture using the X-ray source. | 10-02-2014 |