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1. 发明申请

US20070258558A1 X-RAY CT APPARATUS AND X-RAY CT SCANNING METHOD 审中-公开
标题翻译： X射线CT装置和X射线CT扫描方法
公开(公告)号：US20070258558A1
公开(公告)日：2007-11-08
申请号：US11738238
申请日：2007-04-20
申请人： Akihiko Nishide , Shinichi Iisaku , Junko Sekiguchi
发明人： Akihiko Nishide , Shinichi Iisaku , Junko Sekiguchi
IPC分类号： A61B6/00 , G01N23/00 , G21K1/12 , H05G1/60
CPC分类号： A61B6/481 , A61B6/027 , A61B6/032 , A61B6/469 , A61B6/488 , A61B6/542
摘要： The present invention provides an X-ray CT apparatus which realizes an improvement in timing control on transition to an actual scan for contrast agent synchronous imaging and its reliability, and an improvement in reduction in X-ray exposure. The X-ray CT apparatus includes an X-ray source, an X-ray detector disposed so as to be opposite to the X-ray source with a subject implanted with a contrast agent being interposed therebetween, a contrast agent synchronous imaging device which performs acquisition of projection data upon the start of the actual scan for the contrast agent synchronous photography while relative operations between the subject and the X-ray source, and the X-ray detector are being accelerated in a predetermined direction, and image reconstructing device which reconstructs a tomographic image, based on the projection data.
摘要翻译：本发明提供了一种X射线CT装置，其实现了对于对比剂同步成像的实际扫描的转变及其可靠性的时序控制的改善以及X射线曝光的减少的改进。 X射线CT装置包括X射线源，X射线检测器，被设置为与X射线源相对，被摄体植入造影剂，对象物同步成像装置执行在对象和X射线源和X射线检测器之间的相对操作正在沿预定方向加速时，在对比剂同步拍摄的实际扫描开始时获取投影数据，以及重建图像重建装置基于投影数据的断层图像。

2. 发明授权

US07912175B2 X-ray CT apparatus and X-ray CT scanning method 有权
标题翻译： X射线CT装置和X射线CT扫描方法
公开(公告)号：US07912175B2
公开(公告)日：2011-03-22
申请号：US11956873
申请日：2007-12-14
申请人： Shinichi Iisaku , Junko Sekiguchi
发明人： Shinichi Iisaku , Junko Sekiguchi
IPC分类号： A61B6/03
CPC分类号： A61B6/032 , A61B6/027 , A61B6/481 , A61B6/488
摘要： The present invention is directed to realize an X-ray CT apparatus for properly performing contrast imaging. An X-ray CT apparatus includes an imaging unit and a control unit for controlling the imaging unit. The control unit includes: a first control unit for performing a monitoring scan to monitor arrival of a contrast agent at a region of interest in a start position of a main scan in an imaging range of the main scan that is set along the body axis of the subject or a first monitoring position that is set before the start position in a scan progress direction and, on arrival of the contrast agent, starting the main scan; and a second control unit for monitoring whether or not the contrast agent has reached a region of interest in a second monitoring position provided on the forward side of the start position of the main scan in the imaging range in the scan progress direction on arrival of the main scan at the second monitoring position, when the contrast agent has reached the second monitoring position, continuing the main scan and, when the contrast agent has not reached the second monitoring position yet, performing a monitoring scan for monitoring arrival of the contrast agent.
摘要翻译：本发明旨在实现用于正确执行对比度成像的X射线CT装置。 X射线CT装置包括成像单元和用于控制成像单元的控制单元。控制单元包括：第一控制单元，用于执行监视扫描，以在主扫描的成像范围内的主扫描的开始位置中的感兴趣区域的到达方向，所述对象或第一监视位置，其被设置在扫描进行方向上的开始位置之前，并且在所述造影剂到达时开始所述主扫描; 以及第二控制单元，用于在到达所述扫描进行方向的所述成像范围中的所述主扫描的开始位置的前侧上的所述第二监视位置中是否到达所述感兴趣区域时，在第二监测位置的主扫描，当造影剂已经达到第二监测位置时，继续主扫描，并且当造影剂尚未到达第二监测位置时，执行监测扫描以监测造影剂的到达。

3. 发明申请

US20080292045A1 X-RAY CT APPARATUS AND X-RAY CT SCANNING METHOD 有权
标题翻译： X射线CT装置和X射线CT扫描方法
公开(公告)号：US20080292045A1
公开(公告)日：2008-11-27
申请号：US11956873
申请日：2007-12-14
申请人： Shinichi Iisaku , Junko Sekiguchi
发明人： Shinichi Iisaku , Junko Sekiguchi
IPC分类号： A61B6/00
CPC分类号： A61B6/032 , A61B6/027 , A61B6/481 , A61B6/488
摘要： The present invention is directed to realize an X-ray CT apparatus for properly performing contrast imaging. An X-ray CT apparatus includes an imaging unit and a control unit for controlling the imaging unit. The control unit includes: a first control unit for performing a monitoring scan to monitor arrival of a contrast agent at a region of interest in a start position of a main scan in an imaging range of the main scan that is set along the body axis of the subject or a first monitoring position that is set before the start position in a scan progress direction and, on arrival of the contrast agent, starting the main scan; and a second control unit for monitoring whether or not the contrast agent has reached a region of interest in a second monitoring position provided on the forward side of the start position of the main scan in the imaging range in the scan progress direction on arrival of the main scan at the second monitoring position, when the contrast agent has reached the second monitoring position, continuing the main scan and, when the contrast agent has not reached the second monitoring position yet, performing a monitoring scan for monitoring arrival of the contrast agent.
摘要翻译：本发明旨在实现用于正确执行对比度成像的X射线CT装置。 X射线CT装置包括成像单元和用于控制成像单元的控制单元。控制单元包括：第一控制单元，用于执行监视扫描，以在主扫描的成像范围内的主扫描的开始位置中的感兴趣区域的到达方向，所述对象或第一监视位置，其被设置在扫描进行方向上的开始位置之前，并且在所述造影剂到达时开始所述主扫描; 以及第二控制单元，用于在到达所述扫描进行方向的所述成像范围中的所述主扫描的开始位置的前侧上的所述第二监视位置中是否到达所述感兴趣区域时，在第二监视位置的主扫描，当造影剂已经达到第二监测位置时，继续主扫描，并且当造影剂尚未到达第二监测位置时，执行监测扫描以监测造影剂的到达。

4. 发明申请

US20060104422A1 Transportation apparatus and tomography system 审中-公开
标题翻译：运输装置和断层摄影系统
公开(公告)号：US20060104422A1
公开(公告)日：2006-05-18
申请号：US11280583
申请日：2005-11-16
申请人： Shinichi Iisaku , Shigeru Chikamatsu , Kenichi Nishizawa , Naoki Nakamura , Akira Izuhara , Katsumi Azu , Masashi Maida , Junko Sekiguchi
发明人： Shinichi Iisaku , Shigeru Chikamatsu , Kenichi Nishizawa , Naoki Nakamura , Akira Izuhara , Katsumi Azu , Masashi Maida , Junko Sekiguchi
IPC分类号： A61B6/04
CPC分类号： A61B6/0457 , A61B6/04 , A61B6/0428 , A61B6/102
摘要： An object of the present invention is to concurrently perform the horizontal movements of a cradle and a table in a desirable manner and to desirably prevent interference of the table with a gantry. A microprocessor controls and interlocks a horizontal cradle movement mechanism and a horizontal table movement mechanism. The microprocessor concurrently performs the horizontal movements of the cradle and table. If an operator tries to vary a table height or a tilt angle, the microprocessor performs arithmetic operations to check if the table will interfere with the gantry at a current scan-time position, at which the table should be located during scanning, in the varied state. If the interference is predicted, the table is pulled out of the bore of the gantry until it reaches a position at which the table will not interfere with the gantry.
摘要翻译：本发明的目的是以理想的方式并行地执行托架和台的水平移动，并且期望地防止台与台架的干涉。微处理器控制和互锁水平支架移动机构和水平台移动机构。微处理器同时执行摇篮和桌子的水平移动。如果操作者尝试改变台面高度或倾斜角度，则微处理器执行算术运算，以检查在扫描期间桌子应该位于扫描期间的当前扫描时间位置上的台架是否会与多个州。如果预测到干扰，则将工作台从机架的孔中拉出，直到其到达不影响台架的位置。

5. 发明申请

US20050117695A1 X-ray CT system and image processing method 失效
标题翻译： X射线CT系统和图像处理方法
公开(公告)号：US20050117695A1
公开(公告)日：2005-06-02
申请号：US10999251
申请日：2004-11-30
申请人： Shinichi Iisaku
发明人： Shinichi Iisaku
IPC分类号： A61B6/03 , G06T11/00 , G21K1/12 , A61B6/00 , G01N23/00 , H05G1/60
CPC分类号： G06T19/00 , G06T11/008
摘要： An X-ray CT system comprises an X-ray source and an X-ray detector opposed to the X-ray source with a subject between them. The X-ray detector detects X-rays irradiated from the X-ray source to the subject. The direction in which the X-ray source irradiates X-rays is shifted about the subject. First tomographic images of a predetermined slice thickness representing sections that are orthogonal to a body axis, which links the subject's head and the subject's tiptoe, at predetermined positions of the subject are produced. The X-ray CT system further comprises a parameter designation block in which parameters that define the conditions for producing second tomographic images, and an image processing unit that produces the second tomographic images from the first tomographic images according to the parameters.
摘要翻译： X射线CT系统包括X射线源和与X射线源相对的X射线检测器，其间具有被摄体。 X射线检测器检测从X射线源照射到受试者的X射线。 X射线源照射X射线的方向围绕被摄体移动。产生一个预定切片厚度的第一断层图像，其表示在对象的预定位置处将被检查者的头部和被检者的脚尖连接的身体轴线正交的部分。 X射线CT系统还包括参数指定块，其中定义用于产生第二层析图像的条件的参数，以及根据参数从第一断层图像产生第二断层图像的图像处理单元。

6. 发明授权

US07428289B2 X-ray CT system and image processing method 失效
标题翻译： X射线CT系统和图像处理方法
公开(公告)号：US07428289B2
公开(公告)日：2008-09-23
申请号：US10999251
申请日：2004-11-30
申请人： Shinichi Iisaku
发明人： Shinichi Iisaku
IPC分类号： H05G1/60
CPC分类号： G06T19/00 , G06T11/008
摘要： An X-ray CT system comprises an X-ray source and an X-ray detector opposed to the X-ray source with a subject between them. The X-ray detector detects X-rays irradiated from the X-ray source to the subject. The direction in which the X-ray source irradiates X-rays is shifted about the subject. First tomographic images of a predetermined slice thickness representing sections that are orthogonal to a body axis, which links the subject's head and the subject's tiptoe, at predetermined positions of the subject are produced. The X-ray CT system further comprises a parameter designation block in which parameters that define the conditions for producing second tomographic images, and an image processing unit that produces the second tomographic images from the first tomographic images according to the parameters.
摘要翻译： X射线CT系统包括X射线源和与X射线源相对的X射线检测器，其间具有被摄体。 X射线检测器检测从X射线源照射到受试者的X射线。 X射线源照射X射线的方向围绕被摄体移动。产生一个预定切片厚度的第一断层图像，其表示在对象的预定位置处将被检查者的头部和被检者的脚尖连接的身体轴线正交的部分。 X射线CT系统还包括参数指定块，其中定义用于产生第二层析图像的条件的参数，以及根据参数从第一断层图像产生第二断层图像的图像处理单元。

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