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公开(公告)号：US06947516B2
公开(公告)日：2005-09-20
申请号：US10077819
申请日：2002-02-20
摘要： An X-ray apparatus including an X-ray source, a rotation mechanism which rotates the X-ray source about a rotational axis, and an X-ray detector having a plurality of detection elements. A blocking member defining a slit structure is provided between the X-ray source and the X-ray detector. The slits of the blocking member include two rows aligned in a channel direction of the detector elements, and two rows staggered in the channel direction, thereby to obtain a CT image with improved spatial resolution. Alternatively, instead of using a blocking member, some of the detection elements of at least one detection segment are staggered in the channel direction with respect to detection elements of another detection segment.
摘要翻译： 一种X射线设备，包括X射线源，使X射线源围绕旋转轴线旋转的旋转机构和具有多个检测元件的X射线检测器。 限定狭缝结构的阻挡构件设置在X射线源和X射线检测器之间。 阻挡构件的狭缝包括在检测器元件的通道方向上排列的两列，并且在通道方向上交错排列的两列，从而获得具有改善的空间分辨率的CT图像。 或者，代替使用阻挡构件，至少一个检测段的一些检测元件相对于另一个检测段的检测元件在通道方向上错开。
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公开(公告)号：US07085343B2
公开(公告)日：2006-08-01
申请号：US10272014
申请日：2002-10-17
申请人： Toshiyuki Shinno , Yuji Yanagida , Shigeyuki Nakashima , Yoshiaki Yaoi , Miwa Okumura , Minoru Horinouchi , Masahiko Yamazaki , Machiko Iso , Satoru Nakanishi
发明人： Toshiyuki Shinno , Yuji Yanagida , Shigeyuki Nakashima , Yoshiaki Yaoi , Miwa Okumura , Minoru Horinouchi , Masahiko Yamazaki , Machiko Iso , Satoru Nakanishi
CPC分类号： A61B6/032 , A61B6/027 , A61B6/4014 , A61B6/4488 , A61B6/586
摘要： An X-ray computed tomography apparatus of this invention includes a first data detecting system which includes a first X-ray tube and a first X-ray detector and a second data detecting system which includes a second X-ray tube and a second X-ray detector. A reconstructing unit reconstructs image data on the basis of the data detected by at least one of the first and second data detecting systems. A monitoring unit monitors the first data detecting system. In a period during which the first data detecting system is normal, data acquisition is performed by both the first and second data detecting systems. In a period during which the first data detecting system is faulty, data acquisition is performed by the second data detecting system alone.
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公开(公告)号：US07421062B2
公开(公告)日：2008-09-02
申请号：US11367324
申请日：2006-03-06
申请人： Miwa Okumura , Satoru Nakanishi , Masaharu Tsuyuki , Yasuo Saito
发明人： Miwa Okumura , Satoru Nakanishi , Masaharu Tsuyuki , Yasuo Saito
IPC分类号： H05G1/58 , G01N23/083
CPC分类号： A61B6/032 , A61B6/4014 , A61B6/405 , A61B6/482 , G06T11/006 , G06T2211/412
摘要： An X-ray CT apparatus comprises three X-ray generating units, three groups of detecting elements and a reconstructing unit. The three X-ray generating units are arranged so as to make an angle formed by a first X-ray exposure direction and a second X-ray exposure direction on a rotational plane thereof be a same angle as that formed by the second X-ray exposure direction and a third X-ray exposure direction on the rotational plane, the same angle being smaller than 120 degree. The three groups of detecting elements are arranged opposite to the three X-ray generating units respectively so as to make a field of view formed in a center wider than two side fields of view. The reconstructing unit is configured to reconstruct an image using detection data detected by at least desired one of the three groups of the detecting elements.
摘要翻译： X射线CT装置包括三个X射线产生单元，三组检测元件和重建单元。 三个X射线产生单元被布置成使得其旋转平面上由第一X射线曝光方向和第二X射线曝光方向形成的角度与由第二X射线 曝光方向和旋转平面上的第三X射线曝光方向，相同的角度小于120度。 三组检测元件分别与三个X射线产生单元相对地布置，以便形成在比两个侧视场宽的中心的视场。 重建单元被配置为使用由三组检测元件中的至少期望的一组检测的检测数据来重建图像。
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公开(公告)号：US06917665B2
公开(公告)日：2005-07-12
申请号：US10283103
申请日：2002-10-30
申请人： Satoru Nakanishi , Keiji Matsuda , Yasutaka Shindo , Miwa Okumura
发明人： Satoru Nakanishi , Keiji Matsuda , Yasutaka Shindo , Miwa Okumura
CPC分类号： A61B6/587 , A61B6/032 , A61B6/4085 , A61B6/542 , A61B6/56
摘要： An X-ray computed tomography apparatus for providing information of alignment, comprises an X-ray generator, an X-ray detector, and a controller. The X-ray generator generates an X-ray. The X-ray detector comprises a plurality of detecting segments in a slice direction and detects the X-ray generated by the X-ray generator. The controller provides the information of alignment between the X-ray generator and the X-ray detector in the slice direction on the basis of a detection information obtained from at least two of the detecting segments, wherein each of the at least two of the detecting segments is at least partially covered by a penumbra of the X-ray.
摘要翻译： 一种用于提供对准信息的X射线计算机断层摄影装置，包括X射线发生器，X射线检测器和控制器。 X射线发生器产生X射线。 X射线检测器包括沿切片方向的多个检测段，并且检测由X射线发生器产生的X射线。 控制器基于从至少两个检测段获得的检测信息，在切片方向上提供X射线发生器和X射线检测器之间的对准信息，其中检测器中的至少两个检测 片段至少部分地被X射线的半影覆盖。
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公开(公告)号：US20100111393A1
公开(公告)日：2010-05-06
申请号：US12566247
申请日：2009-09-24
申请人： Miwa Okumura , Satoru Nakanishi
发明人： Miwa Okumura , Satoru Nakanishi
CPC分类号： A61B6/4233 , A61B6/032 , A61B6/4085
摘要： An X-ray CT apparatus has a setting unit, a generating unit, a calculation unit, and a determination unit. The setting unit sets a required width of a group of X-ray detection elements in a row direction, which is relatively insusceptible to an influence of a cone angle of a cone-beam X-ray. The generating unit generates accumulation data by accumulating first projection data, based on first X-ray detection elements within the required width included in the group, with same channel in the row direction in preference to second projection data based on second X-ray detection elements outside the required width included in the group. The calculation unit obtains a motion amount for each heartbeat phase based on the accumulation data. The determination unit determines a specific heartbeat phase based on the motion amount for the each heartbeat phase.
摘要翻译： X射线CT装置具有设定部，生成部，计算部以及判定部。 设置单元设置一组X射线检测元件在行方向上的所需宽度，这对于锥形束X射线的锥角的影响是相对不易察觉的。 生成单元优先于基于第二X射线检测元件的第二投影数据，通过累积第一投影数据，基于组中包含的所需宽度内的第一X射线检测元件，在行方向上具有相同的通道， 在组中包含的所需宽度之外。 计算单元基于积累数据获得每个心跳相位的运动量。 确定单元基于每个心跳阶段的运动量确定特定的心跳相位。
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公开(公告)号：US20060210014A1
公开(公告)日：2006-09-21
申请号：US11367324
申请日：2006-03-06
申请人： Miwa Okumura , Satoru Nakanishi , Masaharu Tsuyuki , Yasuo Saito
发明人： Miwa Okumura , Satoru Nakanishi , Masaharu Tsuyuki , Yasuo Saito
CPC分类号： A61B6/032 , A61B6/4014 , A61B6/405 , A61B6/482 , G06T11/006 , G06T2211/412
摘要： An X-ray CT apparatus comprises three X-ray generating units, three groups of detecting elements and a reconstructing unit. The three X-ray generating units are arranged so as to make an angle formed by a first X-ray exposure direction and a second X-ray exposure direction on a rotational plane thereof be a same angle as that formed by the second X-ray exposure direction and a third X-ray exposure direction on the rotational plane, the same angle being smaller than 120 degree. The three groups of detecting elements are arranged opposite to the three X-ray generating units respectively so as to make a field of view formed in a center wider than two side fields of view. The reconstructing unit is configured to reconstruct an image using detection data detected by at least desired one of the three groups of the detecting elements.
摘要翻译： X射线CT装置包括三个X射线产生单元，三组检测元件和重建单元。 三个X射线产生单元被布置成使得其旋转平面上由第一X射线曝光方向和第二X射线曝光方向形成的角度与由第二X射线 曝光方向和旋转平面上的第三X射线曝光方向，相同的角度小于120度。 三组检测元件分别与三个X射线产生单元相对地布置，以便形成在比两个侧视场宽的中心的视场。 重建单元被配置为使用由三组检测元件中的至少期望的一组检测的检测数据来重建图像。
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公开(公告)号：US07920671B2
公开(公告)日：2011-04-05
申请号：US12566247
申请日：2009-09-24
申请人： Miwa Okumura , Satoru Nakanishi
发明人： Miwa Okumura , Satoru Nakanishi
IPC分类号： A61B6/00
CPC分类号： A61B6/4233 , A61B6/032 , A61B6/4085
摘要： An X-ray CT apparatus has a setting unit, a generating unit, a calculation unit, and a determination unit. The setting unit sets a required width of a group of X-ray detection elements in a row direction, which is relatively insusceptible to an influence of a cone angle of a cone-beam X-ray. The generating unit generates accumulation data by accumulating first projection data, based on first X-ray detection elements within the required width included in the group, with same channel in the row direction in preference to second projection data based on second X-ray detection elements outside the required width included in the group. The calculation unit obtains a motion amount for each heartbeat phase based on the accumulation data. The determination unit determines a specific heartbeat phase based on the motion amount for the each heartbeat phase.
摘要翻译： X射线CT装置具有设定部，生成部，计算部以及判定部。 设置单元设置一组X射线检测元件在行方向上的所需宽度，这对于锥形束X射线的锥角的影响是相对不易察觉的。 生成单元优先于基于第二X射线检测元件的第二投影数据，通过累积第一投影数据，基于组中包含的所需宽度内的第一X射线检测元件，在行方向上具有相同的通道， 在组中包含的所需宽度之外。 计算单元基于积累数据获得每个心跳相位的运动量。 确定单元基于每个心跳阶段的运动量确定特定的心跳相位。
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公开(公告)号：US08755585B2
公开(公告)日：2014-06-17
申请号：US13107368
申请日：2011-05-13
申请人： Satoru Nakanishi , Yasuhiro Noshi
发明人： Satoru Nakanishi , Yasuhiro Noshi
IPC分类号： G06K9/00
CPC分类号： A61B6/5258 , A61B6/032 , A61B6/583 , G06T11/006
摘要： According to one embodiment, an X-ray computed tomography apparatus includes an X-ray tube, an X-ray detector, and a rotating unit. The first reconstruction processing reconstructs a clinical image based on projection data detected by the X-ray detector. The second reconstruction processing reconstructs a noise image based on noise data. The clinical image is combined with the noise image.
摘要翻译： 根据一个实施例，X射线计算机断层摄影装置包括X射线管，X射线检测器和旋转单元。 第一重建处理基于由X射线检测器检测到的投影数据重建临床图像。 第二重建处理基于噪声数据重建噪声图像。 临床图像与噪声图像相结合。
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9.发明授权公开(公告)号：US08709193B2
公开(公告)日：2014-04-29
申请号：US12511180
申请日：2009-07-29
申请人： Kenichirou Tada , Satoru Nakanishi , Taku Yamaga , Shun Ito , Kenichi Watanabe , Miyoshi Yokura , Masashi Kato , Hisashi Katsumata
发明人： Kenichirou Tada , Satoru Nakanishi , Taku Yamaga , Shun Ito , Kenichi Watanabe , Miyoshi Yokura , Masashi Kato , Hisashi Katsumata
IPC分类号： B32B37/00
CPC分类号： B32B38/0008 , B32B27/10 , B32B27/16 , B32B27/286 , B32B37/10 , B32B37/1054 , B32B2037/0092 , B32B2262/0269 , B32B2262/14 , B32B2305/076 , B32B2307/206 , B32B2307/208 , B32B2309/02 , B32B2309/105 , B32B2309/12 , B32B2309/72 , B32B2317/12 , B32B2367/00 , B32B2605/00 , H01B3/301 , Y10T428/31725
摘要： A low-temperature plasma treatment is applied to a surface of an aramid paper so as to allow the surface to have a compositional atomic ratio X (O/C) of the number of oxygen atoms (O) to the number of carbon atoms (C) ranging from 110% to 220% of a theoretical atomic ratio. The treatment is performed at an intensity ranging from 120 to 1500 W·min/m2 with a low-temperature plasma treatment apparatus of internal electrode system. The aramid paper is superposed with a nonhydrolyzable resin film and the resulting article is pressurized to give an aramid-resin film laminate. The laminate is inexpensive, has both superior electrical properties and high mechanical strength, excels in elasticity, and is useful as an insulation material.
摘要翻译： 将低温等离子体处理施加到芳族聚酰胺纸的表面，以使表面具有氧原子数（O）与碳原子数（C）的组成原子比X（O / C） ）为理论原子比的110％至220％。 用内部电极系统的低温等离子体处理装置，以120〜1500W·min / m 2的强度进行处理。 将芳族聚酰胺纸与不可水解的树脂膜重叠，并将所得制品加压，得到芳族聚酰胺树脂膜层压体。 该层压板是廉价的，具有优异的电性能和高机械强度，弹性优异，并且可用作绝缘材料。
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公开(公告)号：US08693784B2
公开(公告)日：2014-04-08
申请号：US13805597
申请日：2011-07-06
申请人： Akira Kadoya , Satoru Nakanishi , Shinichi Kojima
发明人： Akira Kadoya , Satoru Nakanishi , Shinichi Kojima
CPC分类号： G06K9/0061 , G06K9/00597 , G06K9/4623 , G06T7/12 , G06T2207/30041 , G06T2207/30201
摘要： An eyelid detection device that, based on first order differential values and second order differential values of vertical density change at an eyelid boundary in an eye image, shifts the second order differential values upwards by ¼ of the cycle of density change frequency of an eyelid boundary and combines the first order differential values and the second order differential values to compute upper eyelid feature amounts. The eyelid detection device detects a boundary between an upper eyelid and eyeball based on peak points in the vertical direction of the computed upper eyelid feature amounts. Consequently, the boundary between an eyelid and eyeball can be accurately detected even when the eyelid has been applied with makeup.
摘要翻译： 一种眼睑检测装置，其基于眼图中的眼睑边界处的垂直密度变化的一阶微分值和二阶微分值，将二阶微分值向上移动眼睑边界的密度变化频率周期的1/4 并组合一阶微分值和二阶微分值以计算上眼睑特征量。 眼睑检测装置基于计算的上眼睑特征量的垂直方向上的峰值点来检测上眼睑和眼球之间的边界。 因此，即使当眼睑已经被化妆时，也能够精确地检测眼睑和眼球之间的边界。
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