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公开(公告)号：US20180031714A1
公开(公告)日：2018-02-01
申请号：US15660954
申请日：2017-07-27
Applicant: FUJIFILM CORPORATION
Inventor： Takashi TAJIMA
CPC classification number: G01T1/208 , A61B6/4233 , A61B6/4266 , A61B6/505 , G01T1/17 , G01T1/2023 , G01T1/2928 , H04N5/2251 , H04N5/32
Abstract: A radiography system includes a radiography apparatus including first and second radiation detectors and, in a case in which a value corresponding to at least one of a first electric signal or a second electric signal is less than a threshold value, a console derives second imaging conditions using at least one of the first electric signal or the second electric signal, the first electric signal being a signal obtained by converting charge generated in the pixels of the first radiation detector under first imaging conditions, and having a level that increases as an amount of charge increases, the second electric signal being a signal obtained by converting charge generated in the pixels of the second radiation detector under the first imaging conditions, and having a level that increases as an amount of charge increases.
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公开(公告)号：US20150251018A1
公开(公告)日：2015-09-10
申请号：US14637522
申请日：2015-03-04
Applicant: FUJIFILM Corporation
Inventor： Takashi TAJIMA , Jun ENOMOTO , Yasufumi ODA , Takeshi KUWABARA , Daiki HARADA , Yuichi HOSOI , Noriaki IDA , Naoyuki NISHINO , Haruyasu NAKATSUGAWA
IPC: A61N5/10
CPC classification number: A61B6/4233 , A61B6/5282 , G06T5/002 , G06T2207/10116
Abstract: In a radiation image processing apparatus, method, and program, performing image processing based on scattered radiation, such as scattered radiation elimination processing, accurately by taking into account the influence of scattered radiation from an area adjacent to a processing target area. For this purpose, performing image processing on a radiation image captured by applying radiation to a subject based on scattered radiation generated by the subject. In this case, a processing target area which is the processing target in the radiation image is added with another area different from the processing target area in the radiation image. Then, the image processing based on scattered radiation is performed on the processing target area using the another area and the processing target area.
Abstract translation: 在放射线图像处理装置，方法和程序中，通过考虑来自与处理对象区域相邻的区域的散射辐射的影响，精确地进行基于散射辐射的散射辐射的图像处理。 为此，通过基于由被摄体产生的散射辐射向对象施加辐射而对放射线图像进行图像处理。 在这种情况下，作为放射线图像中的处理对象的处理对象区域被添加有与放射线图像中的处理对象区域不同的其他区域。 然后，使用其他区域和处理对象区域，对处理对象区域进行基于散射辐射的图像处理。
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公开(公告)号：US20150055753A1
公开(公告)日：2015-02-26
申请号：US14511268
申请日：2014-10-10
Applicant: FUJIFILM Corporation
Inventor： Takashi TAJIMA
IPC: A61B6/00
CPC classification number: A61B6/542 , A61B6/08 , A61B6/4283 , A61B6/4452 , A61B6/547 , A61B6/588
Abstract: 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.
Abstract translation: 控制台从位移量检测器获取X射线源的位移量。 在具有图像检测器的电子盒相对于要成像的身体部分没有适当定位的情况下，X射线源的位置根据要成像的身体部位的位置而改变。 剂量测量场位置确定单元基于位移量来指定X射线源和具有图像检测器的电子盒之间的当前相对位置。 剂量测量场位置确定单元基于指定的当前相对位置来确定剂量测量场的位置。
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公开(公告)号：US20150036802A1
公开(公告)日：2015-02-05
申请号：US14516625
申请日：2014-10-17
Applicant: FUJIFILM CORPORATION
Inventor： Takashi TAJIMA , Takeshi KUWABARA , Yusuke KITAGAWA
CPC classification number: A61B6/542 , A61B6/4208 , A61B6/4233 , A61B6/4283 , A61B6/4291 , G01T1/08
Abstract: 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.
Abstract translation: 在检测面板中，在成像面上设置有接收X射线并积累电荷的多个像素和检测X射线剂量的多个测量像素。 多个测量像素以间隔周期性地布置。 在与成像面相对的位置上，存在以第一方向以周期性交替的方式配置X射线吸收部和X射线透射部的格栅。 由于第一方向上的测量像素的布置周期与检测面板拍摄格子时获得的网格检测信号的波动周期不同，所以多个测量像素的输出值分散，平均值的波动范围为 被压制
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公开(公告)号：US20130259196A1
公开(公告)日：2013-10-03
申请号：US13800924
申请日：2013-03-13
Applicant: FUJIFILM CORPORATION
Inventor： Takashi TAJIMA
CPC classification number: A61B6/42 , A61B6/4233 , A61B6/4283 , A61B6/465 , G01T7/00 , G03B42/02
Abstract: 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.
Abstract translation: X射线成像系统具有两种类型的电子盒和一种IP盒。 在输入要成像的身体部分时，输入和输出控制器从IP盒的成像条件表中检索与身体部分相对应的成像条件作为参考成像条件。 成像条件计算器将参考成像条件的参考曝光时间乘以每个电子盒的灵敏度系数，以计算在使用每个电子盒时应用的成像条件。 输入和输出控制器显示电子纸盒和IP纸盒的成像条件以及选择按钮，用于以监视器的列表形式选择一个电子纸盒和IP纸盒。
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Patent Agency Ranking
46.发明申请RADIOGRAPHIC DEVICE, RADIOGRAPHIC SYSTEM, CONTROL METHOD AND RECORDING MEDIUM FOR RADIOGRAPHIC DEVICE 有权无线电设备，放射性系统，放射性设备的控制方法和记录介质公开(公告)号：US20130148784A1
公开(公告)日：2013-06-13
申请号：US13692542
申请日：2012-12-03
Applicant: Fujifilm Corporation
Inventor： Takashi TAJIMA
CPC classification number: A61B6/542 , A61B6/4283 , A61B6/5294 , A61B6/56 , G01N23/04 , H05G1/42
Abstract: 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.
Abstract translation: 基于放射照相条件，电子盒的AEC单元设置用于AEC的剂量目标值和短路像素。 当电子盒的控制单元检测到X射线的照射开始时，AEC单元基于由短路像素输出的剂量检测信号开始入射到目标区域的X射线的累积剂量的积分。 AEC单元预测在时间点t1的停止定时，等待直到比预定停止时间早的预定时间的时间点t2，并且在时间点t2向X射线产生装置发送停止定时通知。 当接收到停止定时通知时，X射线源控制装置立即输入照射停止命令以停止X射线源的操作。
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公开(公告)号：US20250072877A1
公开(公告)日：2025-03-06
申请号：US18815304
申请日：2024-08-26
Applicant: FUJIFILM Corporation
Inventor： Takashi TAJIMA
Abstract: A medical image acquisition apparatus including: a biopsy apparatus; an imaging table that is used to capture an image of a living body disposed on an imaging surface with an imaging apparatus; a projector that projects the image; and at least one processor, wherein the processor performs control of projecting information regarding a biopsy that is performed on the living body using the biopsy apparatus, from the projector toward the imaging surface of the imaging table.
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公开(公告)号：US20240065652A1
公开(公告)日：2024-02-29
申请号：US18356161
申请日：2023-07-20
Applicant: FUJIFILM CORPORATION
Inventor： Sho SHIMIZUKAWA , Takashi TAJIMA , Tatsuya TANEICHI , Naoyuki NISHINO , Hisatsugu HORIUCHI
CPC classification number: A61B6/4014 , A61B6/032 , A61B6/5247 , A61B6/54 , A61B6/0478
Abstract: A CT apparatus includes a plurality of imaging units, a rotation mechanism, a radiation source elevating mechanism, a detector elevating mechanism, and a CPU. The imaging unit includes a radiation source that emits radiation having a quadrangular pyramid shape to a subject and a radiation detector in which a plurality of pixels detecting the radiation transmitted through the subject are two-dimensionally arranged. The rotation mechanism rotates the plurality of imaging units around a body axis of the subject. The radiation source elevating mechanism and the detector elevating mechanism change an interval between the plurality of imaging units in a rotation axis direction. An imaging control unit of the CPU controls operations of the plurality of imaging units, the rotation mechanism, the radiation source elevating mechanism, and the detector elevating mechanism.
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公开(公告)号：US20240065646A1
公开(公告)日：2024-02-29
申请号：US18448980
申请日：2023-08-14
Applicant: FUJIFILM CORPORATION
Inventor： Sho SHIMIZUKAWA , Tatsuya TANEICHI , Takashi TAJIMA , Naoyuki NISHINO , Hisatsugu HORIUCHI
CPC classification number: A61B6/035 , A61B6/4014 , A61B6/4085
Abstract: A radiation source includes a radiation tube having a cathode which is a cold cathode. An imaging control unit directs the radiation source to intermittently and alternately emit the first radiation having a first energy distribution and the second radiation having a second energy distribution different from the first energy distribution whenever a rotation mechanism rotates the radiation source and a radiation detector by a preset angle. The imaging control unit directs the radiation detector to output a first projection image based on the first radiation and a second projection image based on the second radiation which are obtained by the intermittent emission of the first radiation and the second radiation. An image processing unit generates a tomographic image on the basis of the first projection image and the second projection image.
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公开(公告)号：US20230018119A1
公开(公告)日：2023-01-19
申请号：US17806734
申请日：2022-06-14
Applicant: FUJIFILM CORPORATION
Inventor： Hisatsugu HORIUCHI , Sho SHIMIZUKAWA , Masakazu FUKUYO , Naoyuki NISHINO , Takashi TAJIMA
Abstract: A radiation detector has a sensor panel unit which includes two sensor panels and in which end portions of the two sensor panels are arranged to overlap each other in a thickness direction. An image processing unit acquires two projection images from the two sensor panels. A combination unit of the image processing unit performs a process related to image quality on the projection image in a case in which a tomographic image which is a diagnosis image to be used for a doctor's diagnosis is generated and does not perform the process related to image quality on the projection image in a case in which a scout image which is a confirmation image for confirming a reflected state of the subject is generated.
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