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1. 发明申请

US20090092222A1 METHOD FOR ESTIMATING SCATTERED RAY INTENSITY IN X-RAY CT AND X-RAY CT APPARATUS 失效
标题翻译： X射线CT和X射线CT装置估计辐射强度的方法
公开(公告)号：US20090092222A1
公开(公告)日：2009-04-09
申请号：US12244259
申请日：2008-10-02
申请人： Yosuke OKAMOTO , Naruomi Akino
发明人： Yosuke OKAMOTO , Naruomi Akino
IPC分类号： H05G1/60 , G01N23/201
CPC分类号： G01N23/04 , A61B6/032 , A61B6/5282
摘要： A method for estimating a scattered ray intensity distribution in an X-ray CT apparatus, the method includes: irradiating a subject with X-rays; and configuring a cross-sectional image of the subject by detecting the X-rays passing through the subject, on the basis of a path length of a scattered ray passing through the subject, an X-ray absorption coefficient of the subject and an X-ray scattering probability of the subject, intensity of the scattered ray being calculated.
摘要翻译：一种用于估计X射线CT装置中的散射光线强度分布的方法，所述方法包括：用X射线照射对象; 根据穿过被检体的散射光线的路径长度，检测被检体的X射线吸收系数和X射线吸收系数，构成被检体的截面图像，受试者的射线散射概率，计算散射光线的强度。

2. 发明申请

US20090092221A1 METHOD FOR SCALING SCATTERED RAY INTENSITY DISTRIBUTION IN MULTI BULBS X-RAY CT AND MULTI BULBS X-RAY CT APPARATUS 有权
标题翻译：用于扩大多发性X射线CT和多发性X射线CT装置中散射强度分布的方法
公开(公告)号：US20090092221A1
公开(公告)日：2009-04-09
申请号：US12243218
申请日：2008-10-01
申请人： Takahiro MANABE , Naruomi Akino
发明人： Takahiro MANABE , Naruomi Akino
IPC分类号： H05G1/60 , H05G1/64
CPC分类号： A61B6/032 , G06T11/005
摘要： A method for scaling a scattered ray intensity distribution in a multi bulbs X-ray CT apparatus configured to irradiate a subject with X-rays from a plurality of X-ray generation sections, respectively and configure a cross-sectional image of the subject by detecting the X-rays passing through the subject, the method includes: a first difference being achieved, the first difference being the difference between a real data of X-ray intensity achieved by passing of X-rays through the subject, the X-rays being radiated from the plurality of the X-ray generation sections, respectively and an opposed data of X-ray intensity achieved by passing of these X-rays through the subject at the same position in an opposite direction, a second difference between scattered ray intensity included in the real data and scattered ray intensity included in the opposed data being achieved, the being achieved including: estimating primary scattered ray included in the real data of the X-ray intensity achieved by passing of the X-rays through the subject, the X-rays being radiated from the plurality of the X-ray generation sections, respectively; and estimating primary scattered ray included in the opposed data of the X-ray intensity achieved by passing of the X-rays through the subject at the same position in an opposite direction, respectively, and performing scaling the primary estimated scattered ray intensity distribution on the basis of a ratio between the first difference and the second difference.
摘要翻译：一种用于缩放多灯泡X射线CT装置中的散射光线强度分布的方法，其被配置为分别从多个X射线产生部分向X射线照射被摄体，并通过检测来配置被摄体的横截面图像通过对象的X射线，该方法包括：实现第一差异，第一个差异是通过穿过被摄体的X射线实现的X射线强度的实际数据之间的差异，X射线为分别从多个X射线产生部发射的X射线强度相对的数据和通过使相对方向的相同位置上的这些X射线通过被检体而实现的X射线强度相对的数据，在所实现的相对数据中包括的真实数据和散射光线强度中，实现包括：估计包括在X射线强度的实际数据中的主要散射光线实现通过使X射线通过被检体，分别从多个X射线产生部照射X射线; 并且估计包括在通过在相反方向上在相同位置上通过对象的X射线实现的X射线强度的相对数据中包括的主要散射光线，并且对第一估计散射光线强度分布进行缩放第一差异和第二差异之间的比率的基础。

3. 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。

4. 发明申请

US20120093279A1 MEDICAL IMAGE PROCESSING APPARATUS, X-RAY COMPUTED TOMOGRAPHY APPARATUS, AND MEDICAL IMAGE PROCESSING METHOD 有权
标题翻译：医学图像处理装置，X射线计算机图像设备和医学图像处理方法
公开(公告)号：US20120093279A1
公开(公告)日：2012-04-19
申请号：US13329754
申请日：2011-12-19
申请人： Naruomi AKINO
发明人： Naruomi AKINO
IPC分类号： A61B6/03
CPC分类号： A61B6/032 , A61B6/405 , A61B6/482 , A61B6/5205 , A61B6/5217
摘要： According to one embodiment, a medical image processing apparatus includes an image storage unit, an estimation unit, a combination ratio determination unit, and a combined image generation unit. The estimation unit is configured to estimate an abundance ratio of one of a first and second substances to the other for each pixel based on attenuation coefficients of the first substance which correspond to a first and second energies, the attenuation coefficients of a second substance which correspond to the first and second energies, and pixel values of a first and second medical images. The combination ratio determination unit is configured to determine combination ratios of pixel values between the first and second medical images for each pixel based on the abundance ratios of the first and second substances and the attenuation coefficients of the first and second substances which are associated with a target energy.
摘要翻译：根据一个实施例，医学图像处理设备包括图像存储单元，估计单元，组合比率确定单元和组合图像生成单元。估计单元被配置为基于对应于第一和第二能量的第一物质的衰减系数来估计每个像素的第一和第二物质中的一个物质与另一物质之间的丰度比，对应于第一物质的衰减系数第一和第二能量以及第一和第二医学图像的像素值。组合比确定单元被配置为基于第一和第二物质的丰度比和与第一和第二物质的相关联的第一和第二物质的衰减系数来确定每个像素的第一和第二医学图像之间的像素值的组合比率目标能量。

5. 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。

6. 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。

7. 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。

8. 发明申请

US20110103662A1 METHOD FOR CIRCULAR SCAN RECONSTRUCTION IN COMPUTED TOMOGRAPHY AND COMPUTED TOMOGRAPHIC DEVICE 有权
标题翻译：计算机图像和计算机图像设备中循环扫描重建的方法
公开(公告)号：US20110103662A1
公开(公告)日：2011-05-05
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： G06K9/00 , 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，其中被摄体的视野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。

9. 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。

10. 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。

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