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1. 发明授权

US07848480B2 X-ray CT scanner and data processing method of X-ray CT scanner 有权
标题翻译： X射线CT扫描仪和X射线CT扫描仪的数据处理方法
公开(公告)号：US07848480B2
公开(公告)日：2010-12-07
申请号：US11776866
申请日：2007-07-12
申请人： Satoru Nakanishi , Naruomi Akino , Yasuo Saito
发明人： Satoru Nakanishi , Naruomi Akino , Yasuo Saito
IPC分类号： A61B6/03
CPC分类号： A61B6/4014 , A61B6/032 , A61B6/541
摘要： An X-ray CT scanner includes X-ray tubes including a first X-ray tube and a second X-ray tube having fan angles different from each other, X-ray detectors including a first X-ray detector and a second X-ray detector which are respectively arranged to face the first X-ray tube and the second X-ray tube, collection data processing means for executing weighting processing to each of pieces of collection data including first collection data obtained by the first X-ray detector and second collection data obtained by the second X-ray detector to generate image data combined to be smooth in a direction corresponding to a channel direction of detection elements provided in the X-ray detectors, and image generating section for performing processing including image reconstruction processing with respect to pieces of collection data weighted by the collection data processing section to generate image data.
摘要翻译： X射线CT扫描器包括X射线管，X射线管包括第一X射线管和具有彼此不同角度的扇形角的第二X射线管，X射线检测器包括第一X射线检测器和第二X射线检测器，其分别布置为面对第一X射线管和第二X射线管，收集数据处理装置，用于对包括由第一X射线检测器获得的第一收集数据和第二X射线检测器的第二收集数据进行加权处理通过第二X射线检测器获得的收集数据，以生成在与设置在X射线检测器中的检测元件的通道方向对应的方向上平滑化的图像数据;以及图像生成部，执行包括图像重建处理的处理由收集数据处理部分加权的收集数据片段以生成图像数据。

2. 发明申请

US20090028288A1 X-RAY COMPUTED TOMOGRAPHY APPARATUS 有权
标题翻译： X射线计算机图像设备
公开(公告)号：US20090028288A1
公开(公告)日：2009-01-29
申请号：US12179918
申请日：2008-07-25
申请人： Tetsuya Horiuchi , Satoru Nakanishi , Naruomi Akino
发明人： Tetsuya Horiuchi , Satoru Nakanishi , Naruomi Akino
IPC分类号： A61B6/00
CPC分类号： A61B6/032 , G06T11/006 , G06T2211/421 , G06T2211/432
摘要： An X-ray computed tomography apparatus includes a gantry, a reconstruction processing unit which generates first volume data on the basis of a projection data set which covers an angle range of 180°±a fan angle and also generates second volume data on the basis of a projection data set which covers an angle range of 360°, a correction data generating unit which generates correction data for reducing a cone beam artifact on the basis of a difference between the first volume data and the second volume data, and a correction unit which corrects the first volume data on the basis of the correction data.
摘要翻译：一种X射线计算机断层摄影装置，包括台架，重建处理单元，其基于覆盖角度范围为180度±扇形角的投影数据集生成第一体积数据，并且还基于覆盖360°的角度范围的投影数据组;校正数据生成单元，其基于第一体积数据和第二体数据之间的差产生用于减少锥形束伪像的校正数据;以及校正单元，基于校正数据校正第一卷数据。

3. 发明申请

US20080019474A1 X-RAY CT SCANNER AND DATA PROCESSING METHOD OF X-RAY CT SCANNER 有权
标题翻译： X射线CT扫描仪和X射线CT扫描仪的数据处理方法
公开(公告)号：US20080019474A1
公开(公告)日：2008-01-24
申请号：US11776866
申请日：2007-07-12
申请人： Satoru Nakanishi , Naruomi Akino , Yasuo Saito
发明人： Satoru Nakanishi , Naruomi Akino , Yasuo Saito
IPC分类号： A61B6/03
CPC分类号： A61B6/4014 , A61B6/032 , A61B6/541
摘要： An X-ray CT scanner includes X-ray tubes including a first X-ray tube and a second X-ray tube having fan angles different from each other, X-ray detectors including a first X-ray detector and a second X-ray detector which are respectively arranged to face the first X-ray tube and the second X-ray tube, collection data processing means for executing weighting processing to each of pieces of collection data including first collection data obtained by the first X-ray detector and second collection data obtained by the second X-ray detector to generate image data combined to be smooth in a direction corresponding to a channel direction of detection elements provided in the X-ray detectors, and image generating section for performing processing including image reconstruction processing with respect to pieces of collection data weighted by the collection data processing section to generate image data.
摘要翻译： X射线CT扫描器包括X射线管，X射线管包括第一X射线管和具有彼此不同角度的扇形角的第二X射线管，X射线检测器包括第一X射线检测器和第二X射线检测器，其分别布置为面对第一X射线管和第二X射线管，收集数据处理装置，用于对包括由第一X射线检测器获得的第一收集数据和第二X射线检测器的第二收集数据进行加权处理通过第二X射线检测器获得的收集数据，以生成在与设置在X射线检测器中的检测元件的通道方向对应的方向上平滑化的图像数据;以及图像生成部，执行包括图像重建处理的处理由收集数据处理部分加权的收集数据片段以生成图像数据。

4. 发明授权

US08416913B2 X-ray CT system, object-outline estimating method, and image reconstructing method 有权
标题翻译： X射线CT系统，物体轮廓估计方法和图像重建方法
公开(公告)号：US08416913B2
公开(公告)日：2013-04-09
申请号：US12045966
申请日：2008-03-11
申请人： Naruomi Akino , Satoru Nakanishi , Tetsuya Horiuchi
发明人： Naruomi Akino , Satoru Nakanishi , Tetsuya Horiuchi
IPC分类号： A61B6/03
CPC分类号： G06T11/005 , A61B6/03 , G06T7/564 , G06T2207/10116
摘要： X-ray transmission data of a specific direction is extracted from X-ray transmission data obtained by rotating an X-ray tube irradiating an X-ray around an object. The outline of the object is calculated based on the X-ray transmission data of the specific direction. Then, based on this outline, the X-ray transmission data is corrected, and an image of the inside of the object is reconstructed from the corrected X-ray transmission data.
摘要翻译：从通过旋转X射线管照射X射线的物体所获得的X射线透射数据中提取特定方向的X射线透射数据。基于特定方向的X射线透射数据计算对象的轮廓。然后，基于该轮廓，对X射线透射数据进行校正，根据经校正的X射线透射数据重构对象内部的图像。

5. 发明授权

US08045781B2 X-ray computed tomography apparatus, reconstruction processing apparatus, and image processing apparatus 有权
标题翻译： X射线计算机断层摄影装置，重建处理装置和图像处理装置
公开(公告)号：US08045781B2
公开(公告)日：2011-10-25
申请号：US12169963
申请日：2008-07-09
申请人： Satoru Nakanishi , Naruomi Akino
发明人： Satoru Nakanishi , Naruomi Akino
IPC分类号： G06K9/00
CPC分类号： G06T11/008 , A61B6/027 , Y10S378/901
摘要： An X-ray computed tomography apparatus scans a subject to be examined with cone beam X-rays, and generates reference volume data on the basis of projection data. This apparatus extracts a cone beam artifact component contained in the reference volume data on the basis of the typical shape and direction of the cone beam artifact component. This apparatus generates resultant volume data with the reduced cone beam artifact by subtracting the cone beam artifact component from the reference volume data.
摘要翻译： X射线计算机断层摄影装置用锥形束X射线扫描要检查的对象，并根据投影数据生成参考体积数据。该装置基于锥形束伪影分量的典型形状和方向提取包含在参考体积数据中的锥形束伪影分量。该装置通过从参考体积数据中减去锥束伪影分量来产生具有减小的锥束伪影的合成体数据。

6. 发明申请

US20090016485A1 X-RAY COMPUTED TOMOGRAPHY APPARATUS, RECONSTRUCTION PROCESSING APPARATUS, AND IMAGE PROCESSING APPARATUS 有权
标题翻译： X射线计算机图像设备，重建处理设备和图像处理设备
公开(公告)号：US20090016485A1
公开(公告)日：2009-01-15
申请号：US12169963
申请日：2008-07-09
申请人： Satoru NAKANISHI , Naruomi Akino
发明人： Satoru NAKANISHI , Naruomi Akino
IPC分类号： G01N23/00
CPC分类号： G06T11/008 , A61B6/027 , Y10S378/901
摘要： An X-ray computed tomography apparatus scans a subject to be examined with cone beam X-rays, and generates reference volume data on the basis of projection data. This apparatus extracts a cone beam artifact component contained in the reference volume data on the basis of the typical shape and direction of the cone beam artifact component. This apparatus generates resultant volume data with the reduced cone beam artifact by subtracting the cone beam artifact component from the reference volume data.
摘要翻译： X射线计算机断层摄影装置用锥形束X射线扫描要检查的对象，并根据投影数据生成参考体积数据。该装置基于锥形束伪影分量的典型形状和方向提取包含在参考体积数据中的锥形束伪影分量。该装置通过从参考体积数据中减去锥束伪影分量来产生具有减小的锥束伪影的合成体数据。

7. 发明授权

US07751524B2 X-ray computed tomography apparatus 有权
标题翻译： X射线计算机断层摄影装置
公开(公告)号：US07751524B2
公开(公告)日：2010-07-06
申请号：US12179918
申请日：2008-07-25
申请人： Tetsuya Horiuchi , Satoru Nakanishi , Naruomi Akino
发明人： Tetsuya Horiuchi , Satoru Nakanishi , Naruomi Akino
IPC分类号： A61B6/00
CPC分类号： A61B6/032 , G06T11/006 , G06T2211/421 , G06T2211/432
摘要： An X-ray computed tomography apparatus includes a gantry, a reconstruction processing unit which generates first volume data on the basis of a projection data set which covers an angle range of 180°+a fan angle and also generates second volume data on the basis of a projection data set which covers an angle range of 360°, a correction data generating unit which generates correction data for reducing a cone beam artifact on the basis of a difference between the first volume data and the second volume data, and a correction unit which corrects the first volume data on the basis of the correction data.
摘要翻译：一种X射线计算机断层摄影装置，包括台架，重建处理单元，其基于覆盖角度范围为180度+风扇角度的投影数据集生成第一体积数据，并且还基于覆盖360°的角度范围的投影数据组;校正数据生成单元，其基于第一体积数据和第二体数据之间的差产生用于减少锥形束伪像的校正数据;以及校正单元，基于校正数据校正第一卷数据。

8. 发明申请

US20080226022A1 X-RAY CT SYSTEM, OBJECT-OUTLINE ESTIMATING METHOD, AND IMAGE RECONSTRUCTING METHOD 有权
标题翻译： X射线CT系统，对象概要估计方法和图像重构方法
公开(公告)号：US20080226022A1
公开(公告)日：2008-09-18
申请号：US12045966
申请日：2008-03-11
申请人： Naruomi Akino , Satoru Nakanishi , Tetsuya Horiuchi
发明人： Naruomi Akino , Satoru Nakanishi , Tetsuya Horiuchi
IPC分类号： A61B6/00
CPC分类号： G06T11/005 , A61B6/03 , G06T7/564 , G06T2207/10116
摘要： X-ray transmission data of a specific direction is extracted from X-ray transmission data obtained by rotating an X-ray tube irradiating an X-ray around an object. The outline of the object is calculated based on the X-ray transmission data of the specific direction. Then, based on this outline, the X-ray transmission data is corrected, and an image of the inside of the object is reconstructed from the corrected X-ray transmission data.
摘要翻译：从通过旋转X射线管照射X射线的物体所获得的X射线透射数据中提取特定方向的X射线透射数据。基于特定方向的X射线透射数据计算对象的轮廓。然后，基于该轮廓，对X射线透射数据进行校正，根据经校正的X射线透射数据重构对象内部的图像。

9. 发明授权

US08559687B2 Method for circular scan reconstruction in computed tomography and computed tomographic device 有权
标题翻译：计算机断层扫描和计算机断层摄影装置中循环扫描重建的方法
公开(公告)号：US08559687B2
公开(公告)日：2013-10-15
申请号：US12609999
申请日：2009-10-30
申请人： Be-Shan Chiang , Alex Zamyatin , Mike Silver , Yu Zou , Naruomi Akino , Thomas Labno
发明人： Be-Shan Chiang , Alex Zamyatin , Mike Silver , Yu Zou , Naruomi Akino , Thomas Labno
IPC分类号： A61B6/03
CPC分类号： A61B6/03 , A61B6/032 , A61B6/466 , G06T11/006 , G06T2211/421
摘要： A method of computed-tomography and a computed-tomography apparatus where the portion of the field of view of a subject were full scan data is available is reconstructed using a full-scan algorithm. In the areas where full scan data is not available, half-scanning is used. Data is also extrapolated from the full scan data. The extrapolated data overlaps a portion of the half-scanning data. The extrapolated data and the overlapped portion of the half-scanning data are feathered. The image is reconstructed using the full-scan, half-scan and feathered data. Corner regions in an image are exposed and reconstructed to produce more uniform z-coverage of the reconstruction field of view.
摘要翻译：使用全扫描算法重建计算机断层摄影的方法和计算机断层摄影装置，其中被摄体的视场的一部分是全扫描数据。在全扫描数据不可用的区域，使用半扫描。数据也从全扫描数据外推。外推数据与半扫描数据的一部分重叠。外推数据和半扫描数据的重叠部分是羽化的。使用全扫描，半扫描和羽化数据重建图像。图像中的角区域被曝光和重建以产生更均匀的重建视野的z覆盖。

10. 发明授权

US08009795B2 Image processing apparatus and X-ray computer tomography apparatus 有权
标题翻译：图像处理装置和X射线计算机断层摄影装置
公开(公告)号：US08009795B2
公开(公告)日：2011-08-30
申请号：US12560655
申请日：2009-09-16
申请人： Kazumasa Arakita , Naruomi Akino
发明人： Kazumasa Arakita , Naruomi Akino
IPC分类号： A61B6/00
CPC分类号： G06T7/20 , G06T7/0012 , G06T2207/10081 , G06T2207/20101 , G06T2207/30048 , G06T2207/30061
摘要： An image processing apparatus includes a storage unit which stores the data of a plurality of images including an examination target organ of an object, a reference point determining unit which determines, from each of the images, a reference point which is located in or near a region of the examination target organ and undergoes a relatively small displacement accompanying respiratory motion or, heartbeat, and a moving amount calculation unit which determines the position of each of a plurality of points of interest included in the region of the examination target organ relative to the reference point for each of the images, and calculates, based on the determined positions, moving amounts that corresponding points of interest between the images move accompanying the respiratory motion or the heartbeat.
摘要翻译：图像处理装置包括：存储单元，存储包括对象的检查对象器官的多个图像的数据;参考点确定单元，其从每个图像确定位于或接近对象的参考点检查目标器官的区域，并且伴随呼吸运动或心跳的相对较小的位移，以及移动量计算单元，其确定包括在检查对象器官的区域中的多个兴趣点中的每一个的位置相对于并且基于所确定的位置，计算图像之间的相应兴趣点伴随呼吸运动或心跳移动的移动量。

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