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1. 发明授权

US08774350B2 X-ray CT device 失效
标题翻译： X射线CT装置
公开(公告)号：US08774350B2
公开(公告)日：2014-07-08
申请号：US13391074
申请日：2010-08-19
申请人： Yushi Tsubota , Fumito Watanabe , Hironori Ueki , Yasutaka Konno , Shinichi Kojima , Atsuro Suzuki
发明人： Yushi Tsubota , Fumito Watanabe , Hironori Ueki , Yasutaka Konno , Shinichi Kojima , Atsuro Suzuki
IPC分类号： A61B6/03
CPC分类号： A61B6/032 , A61B6/06 , A61B6/4021 , A61B6/4208 , A61B6/58
摘要： Scattered X-rays scattered by an object or a structure enter in a detector (a shift detector) for detecting the positional shift of an X-ray focal point and become a noise source, thereby deteriorating the positional shift detection precision. In particular, the estimation of the dose of scattered X-rays originating from the object is difficult prior to the measurement, and correction of the scattered X-rays is important in order to precisely calculate the positional shift of the X-ray focal point. In order to address this drawback, according to the present invention, a scattered X-ray detector 6 is provided which measures the dose of scattered rays entering in a shift detector 5 for detecting the positional shift of an X-ray focal point 9, and has a function that the output by the shift detector 5 is corrected using the scattered ray dose measured by the scattered X-ray detector.
摘要翻译：由物体或结构散射的散射的X射线进入用于检测X射线焦点的位置偏移并成为噪声源的检测器（移位检测器），从而劣化位置偏移检测精度。特别地，在测量之前难以估计源自物体的散射X射线的剂量，并且为了精确地计算X射线焦点的位置偏移，散射X射线的校正是重要的。为了解决这个缺陷，根据本发明，提供一种散射X射线检测器6，其测量进入用于检测X射线焦点9的位置偏移的换档检测器5中的散射光线的剂量，具有使用由散射X射线检测器测定的散射光线剂量校正移位检测器5的输出的功能。

2. 发明申请

US20120232385A1 RADIATION IMAGING DEVICE AND NUCLEAR MEDICINE DIAGNOSTIC DEVICE USING SAME 审中-公开
标题翻译：辐射成像装置和使用相同的核医学诊断装置
公开(公告)号：US20120232385A1
公开(公告)日：2012-09-13
申请号：US13508753
申请日：2010-10-29
申请人： Kaori Hattori , Atsuro Suzuki , Katsutoshi Tsuchiya , Takafumi Ishitsu , Keiji Kobashi
发明人： Kaori Hattori , Atsuro Suzuki , Katsutoshi Tsuchiya , Takafumi Ishitsu , Keiji Kobashi
IPC分类号： A61B6/02
CPC分类号： G01T1/1648 , A61B6/037 , G21K1/025
摘要： The radiation imaging device acquires incident position information of radiation for each detector by setting the size of a through-hole such that at least one pixel is arrayed in a plane view from a direction perpendicular to the detector plane; arranges a septa in displacing from a boundary line between a detector pair in a plane view from a direction perpendicular to the detector plane; further arranging the septa so as to be orthogonal to the boundary line between the detector pair in a plane view from a direction perpendicular to the detector plane; arranges the top of the through-hole in a plane view from a direction perpendicular to the detector plane, in displacing from the boundary line of the detector pair; and arranges the top of the detectors in a plane view from a direction perpendicular to the detector plane so as to be visible through the through-hole.
摘要翻译：放射线摄像装置通过设定贯通孔的尺寸，使得至少一个像素沿垂直于检测器平面的方向在平面图中排列，来获取每个检测器的辐射的入射位置信息; 布置隔板从垂直于检测器平面的方向在平面视图中从检测器对之间的边界线移位; 在垂直于检测器平面的方向的平面图中进一步布置隔片以使其与检测器对之间的边界线正交; 从垂直于检测器平面的方向以平面视图排列通孔的顶部，从检测器对的边界线移位; 并且将检测器的顶部从与检测器平面垂直的方向平面地布置，以便通过通孔可见。

3. 发明授权

US08761483B2 Calibration system for focal spot shift in an X-ray CT device 失效
标题翻译： X射线CT装置中焦点偏移的校准系统
公开(公告)号：US08761483B2
公开(公告)日：2014-06-24
申请号：US13390752
申请日：2010-08-12
申请人： Atsuro Suzuki , Fumito Watanabe , Hironori Ueki , Yasutaka Konno , Shinichi Kojima , Yushi Tsubota
发明人： Atsuro Suzuki , Fumito Watanabe , Hironori Ueki , Yasutaka Konno , Shinichi Kojima , Yushi Tsubota
IPC分类号： G06K9/00
CPC分类号： A61B6/032 , A61B6/4021 , A61B6/4291 , A61B6/4411 , A61B6/585 , A61B6/587
摘要： In a state where a subject 5 is not present, a pre-processing unit 7 changes the focal spot position that becomes the position of an X-ray tube 2, acquires the X-ray incidence rate of each detection module at each focal spot position, approximates the X-ray incidence rate of each detection module by the X-ray incidence rate of a module in which a reference detector is present, and stores the coefficient of an approximate polynomial in a storage unit 8. When a scanning of the subject 5 is performed, the X-ray incidence rate of each detection module is calculated using the X-ray incidence rate of the module in which the reference detector is present and the stored coefficient, and sensitivity correction data relating to each focal spot position is obtained using the calculated X-ray incidence rate when the scanning of the subject is performed.
摘要翻译：在不存在对象5的状态下，预处理单元7改变成为X射线管2的位置的焦点位置，获取每个焦点位置处的每个检测模块的X射线入射率通过存在基准检测器的模块的X射线入射率近似每个检测模块的X射线入射率，并将近似多项式的系数存储在存储单元8中。当对象的扫描如图5所示，使用存在基准检测器的模块的X射线入射率和存储的系数来计算各检测模块的X射线入射率，得到与各焦斑位置有关的灵敏度校正数据当进行被摄体的扫描时，使用计算出的X射线发生率。

4. 发明申请

US20120177272A1 X-RAY CT DEVICE 失效
标题翻译： X射线CT设备
公开(公告)号：US20120177272A1
公开(公告)日：2012-07-12
申请号：US13390752
申请日：2010-08-12
申请人： Atsuro Suzuki , Fumito Watanabe , Hironori Ueki , Yasutaka Konno , Shinichi Kojima , Yushi Tsubota
发明人： Atsuro Suzuki , Fumito Watanabe , Hironori Ueki , Yasutaka Konno , Shinichi Kojima , Yushi Tsubota
IPC分类号： G06K9/00
CPC分类号： A61B6/032 , A61B6/4021 , A61B6/4291 , A61B6/4411 , A61B6/585 , A61B6/587
摘要： In a state where a subject 5 is not present, a pre-processing unit 7 changes the focal spot position that becomes the position of an X-ray tube 2, acquires the X-ray incidence rate of each detection module at each focal spot position, approximates the X-ray incidence rate of each detection module by the X-ray incidence rate of a module in which a reference detector is present, and stores the coefficient of an approximate polynomial in a storage unit 8. When a scanning of the subject 5 is performed, the X-ray incidence rate of each detection module is calculated using the X-ray incidence rate of the module in which the reference detector is present and the stored coefficient, and sensitivity correction data relating to each focal spot position is obtained using the calculated X-ray incidence rate when the scanning of the subject is performed.
摘要翻译：在不存在对象5的状态下，预处理单元7改变成为X射线管2的位置的焦点位置，获取每个焦点位置处的每个检测模块的X射线入射率通过存在基准检测器的模块的X射线入射率近似每个检测模块的X射线入射率，并将近似多项式的系数存储在存储单元8中。当对象的扫描如图5所示，使用存在基准检测器的模块的X射线入射率和存储的系数来计算各检测模块的X射线入射率，得到与各焦斑位置有关的灵敏度校正数据当进行被摄体的扫描时，使用计算出的X射线发生率。

5. 发明申请

US20120170708A1 X-RAY CT DEVICE 失效
标题翻译： X射线CT设备
公开(公告)号：US20120170708A1
公开(公告)日：2012-07-05
申请号：US13391074
申请日：2010-08-19
申请人： Yushi Tsubota , Fumito Watanabe , Hironori Ueki , Yasutaka Konno , Shinichi Kojima , Atsuro Suzuki
发明人： Yushi Tsubota , Fumito Watanabe , Hironori Ueki , Yasutaka Konno , Shinichi Kojima , Atsuro Suzuki
IPC分类号： A61B6/03
CPC分类号： A61B6/032 , A61B6/06 , A61B6/4021 , A61B6/4208 , A61B6/58
摘要： Scattered X-rays scattered by an object or a structure enter in a detector (a shift detector) for detecting the positional shift of an X-ray focal point and become a noise source, thereby deteriorating the positional shift detection precision. In particular, the estimation of the dose of scattered X-rays originating from the object is difficult prior to the measurement, and correction of the scattered X-rays is important in order to precisely calculate the positional shift of the X-ray focal point. In order to address this drawback, according to the present invention, a scattered X-ray detector 6 is provided which measures the dose of scattered rays entering in a shift detector 5 for detecting the positional shift of an X-ray focal point 9, and has a function that the output by the shift detector 5 is corrected using the scattered ray dose measured by the scattered X-ray detector.
摘要翻译：由物体或结构散射的散射的X射线进入用于检测X射线焦点的位置偏移并成为噪声源的检测器（移位检测器），从而劣化位置偏移检测精度。特别地，在测量之前难以估计源自物体的散射X射线的剂量，并且为了精确地计算X射线焦点的位置偏移，散射X射线的校正是重要的。为了解决这个缺陷，根据本发明，提供一种散射X射线检测器6，其测量进入用于检测X射线焦点9的位置偏移的换档检测器5中的散射光线的剂量，具有使用由散射X射线检测器测定的散射光线剂量校正移位检测器5的输出的功能。

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