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1. 发明授权

US09161732B2 Radiographic apparatus, control method, and computer program product 有权
标题翻译：射线照相设备，控制方法和计算机程序产品
公开(公告)号：US09161732B2
公开(公告)日：2015-10-20
申请号：US13152758
申请日：2011-06-03
申请人： Takuzo Takayama
发明人： Takuzo Takayama
IPC分类号： G01N23/04 , A61B6/00 , A61B6/03
CPC分类号： A61B6/4417 , A61B6/032 , A61B6/037 , A61B6/547 , A61B6/58
摘要： A radiographic apparatus according to an embodiment includes storage, a shape image capture unit, an image acquiring unit, a position acquiring unit, a conversion unit, and a positional relationship adjusting unit. The shape image capture unit captures the shape image of an examinee. The image acquiring unit acquires a shape image from the storage. The position acquiring unit acquires a position in the acquired shape image which corresponds to a region of interest. The conversion unit converts the position in the acquired shape image into a position in the captured shape image. The positional relationship adjusting unit adjusts the positional relationship between a detector and the examinee on the basis of the conversion result.
摘要翻译：根据实施例的放射线照相设备包括存储器，形状图像捕获单元，图像获取单元，位置获取单元，转换单元和位置关系调整单元。形状图像捕获单元捕获受检者的形状图像。图像获取单元从存储器获取形状图像。位置获取单元获取所获取的形状图像中与感兴趣区域相对应的位置。转换单元将获取的形状图像中的位置转换成捕获的形状图像中的位置。位置关系调整单元根据转换结果调整检测器与受检者的位置关系。

2. 发明授权

US08625868B2 Radiation diagnostic apparatus and image reconstructing method 有权
标题翻译：辐射诊断仪和图像重建方法
公开(公告)号：US08625868B2
公开(公告)日：2014-01-07
申请号：US12880506
申请日：2010-09-13
申请人： Takuzo Takayama , Manabu Teshigawara , Kenta Moriyasu
发明人： Takuzo Takayama , Manabu Teshigawara , Kenta Moriyasu
IPC分类号： G06K9/00
CPC分类号： G01T1/1647 , A61B6/037 , G06T11/006
摘要： According to one embodiment, a radiation diagnostic apparatus includes a photon-counting detector, a counting information storage unit, an image reconstituting unit, and a controlling unit. The detector performs counting on light derived from incident radiation. The counting information storage unit stores therein counting information based on the counting result of the detector. The image reconstituting unit reconstitutes a medical image by performing a back projection process on projection data that is generated by use of the counting information stored in the counting information storage unit. After the reconstitution of the medical image, the controlling unit performs control so that all or part of the counting information is maintained in the counting information storage unit.
摘要翻译：根据一个实施例，辐射诊断装置包括光子计数检测器，计数信息存储单元，图像重构单元和控制单元。检测器对来自入射辐射的光进行计数。计数信息存储单元根据检测器的计数结果存储计数信息。图像重构单元通过对通过使用存储在计数信息存储单元中的计数信息生成的投影数据进行反投影处理来重构医学图像。在医疗图像的重构之后，控制单元进行控制，使得在计数信息存储单元中保持全部或部分计数信息。

3. 发明授权

US08558176B2 Medical image diagnosis apparatus and image reconstruction method 有权
标题翻译：医学图像诊断装置及图像重建方法
公开(公告)号：US08558176B2
公开(公告)日：2013-10-15
申请号：US13152696
申请日：2011-06-03
申请人： Tomoyasu Komori , Nobutoku Motomura , Takuzo Takayama , Atsushi Fukano , Masao Yamahana , Tatsuya Watanabe
发明人： Tomoyasu Komori , Nobutoku Motomura , Takuzo Takayama , Atsushi Fukano , Masao Yamahana , Tatsuya Watanabe
IPC分类号： G01T1/00
CPC分类号： A61B6/037 , A61B6/032 , A61B6/4417 , G06T11/006 , G06T2211/421 , G06T2211/424
摘要： In a nuclear medicine imaging apparatus as a medical image diagnosis apparatus according to one embodiment, a PET detector is configured to detect a gamma ray emitted from a nuclide introduced into a body of a subject. A PET image reconstruction unit is configured to reconstruct a nuclear medicine image (PET image) as a medical image from the gamma ray projection data created based on the gamma ray detected by the PET detector using successive approximation. A controller is configured to control the PET image reconstruction unit to change the parameter used in the successive approximation depending on information regarding the scanning region in the body of the subject.
摘要翻译：在根据一个实施例的作为医学图像诊断装置的核医学成像装置中，PET检测器被配置为检测从引入到对象体内的核素发射的γ射线。 PET图像重建单元被配置为从基于由PET检测器检测的伽马射线创建的伽马射线投影数据逐次逼近来重建作为医学图像的核医学图像（PET图像）。控制器被配置为根据与被摄体的身体中的扫描区域有关的信息来控制PET图像重建单元改变在逐次逼近中使用的参数。

4. 发明授权

US08481950B2 Nuclear medicine imaging apparatus, control method, and computer program product 有权
公开(公告)号：US08481950B2
公开(公告)日：2013-07-09
申请号：US13153028
申请日：2011-06-03
申请人： Yasunobu Yamada , Takuzo Takayama
发明人： Yasunobu Yamada , Takuzo Takayama
IPC分类号： G01T1/166
摘要： A nuclear medicine imaging apparatus according to an embodiment of the invention includes a detector, a measuring unit, and an end control unit. The detector is configured to detect radiation for generating a nuclear medicine image. The measuring unit is configured to measure the number of times the detector detects the radiation. The end control unit is configured to control the detector to end the detection operation when the number of times measured by the measuring unit is equal to or less than a threshold value.

5. 发明授权

US08373131B2 Nuclear medicine imaging apparatus and analyzing system 有权
标题翻译：核医学成像设备及分析系统
公开(公告)号：US08373131B2
公开(公告)日：2013-02-12
申请号：US13586949
申请日：2012-08-16
申请人： Manabu Teshigawara , Takuzo Takayama , Yuuji Yanagida , Takaya Umehara
发明人： Manabu Teshigawara , Takuzo Takayama , Yuuji Yanagida , Takaya Umehara
IPC分类号： G01T1/164
CPC分类号： G01N29/043 , G01N29/2418 , G01N29/2437 , G01N29/46
摘要： A PET apparatus includes an optical coupling detachment testing unit. In one example, the optical coupling detachment testing unit inputs an electric signal to a piezoelectric element or the like adhered to a detector module and generates a sound wave within the detector module. Further, the optical coupling detachment testing unit detects the sound wave propagated within the detector module and performs a frequency analysis on the detected sound wave. Subsequently, as a result of the analysis, the optical coupling detachment testing unit detects whether an optical coupling detachment has occurred by looking for a frequency distribution specific to a surface having an optical coupling detachment and/or comparing a frequency distribution with another frequency distribution from a previous test.
摘要翻译： PET装置包括光耦合脱离测试单元。在一个示例中，光耦合分离测试单元将电信号输入到粘附到检测器模块上的压电元件等，并在检测器模块内产生声波。此外，光耦合分离测试单元检测在检测器模块内传播的声波，并对检测到的声波执行频率分析。随后，作为分析的结果，光耦合分离测试单元通过寻找具有光耦合分离的表面的频率分布和/或将频率分布与另一频率分布进行比较来检测是否发生了光耦合分离以前的测试。

6. 发明申请

US20110309256A1 TOF-PET APPARATUS, DETECTOR RING AND DETECTOR 有权
标题翻译： TOF-PET设备，检测器环和检测器
公开(公告)号：US20110309256A1
公开(公告)日：2011-12-22
申请号：US13161689
申请日：2011-06-16
申请人： Kenta MORIYASU , Takuzo Takayama
发明人： Kenta MORIYASU , Takuzo Takayama
IPC分类号： G01T1/164
CPC分类号： G01T1/2985 , A61B6/037
摘要： According to one embodiment, a TOF-PET apparatus includes a plurality of detector rings arranged along a central axis thereof. Each of the detector rings comprises a plurality of scintillators and a plurality of photomultipliers. The scintillators are arranged on a substantial circumference around the central axis and generate scintillation in response to pair annihilation gamma-rays from a subject. The photomultipliers generate an electric signal in accordance with the generated scintillation. A length of each of the scintillators along a radial direction of the substantial circumference is set to a range in which a value of a total number of counts/time resolution of coincidence events of pair annihilation gamma-rays is more improved than when a reference scintillator whose probability of interaction with pair annihilation gamma-rays is adjusted to 80% is used under conditions of a constant total volume of the scintillators.
摘要翻译：根据一个实施例，TOF-PET装置包括沿其中心轴布置的多个检测环。每个检测器环包括多个闪烁体和多个光电倍增管。闪烁体布置在围绕中心轴线的实质圆周上，并响应于来自受试者的对湮灭γ射线而产生闪烁。光电倍增管根据产生的闪烁产生电信号。沿着实质圆周的径向方向的每个闪烁体的长度被设定为与参考闪烁体相比，对湮灭伽马射线的重合事件的总计数/时间分辨率的值更加改善的范围在闪烁体的总体积的恒定条件下使用与湮灭伽马射线相互作用的概率为80％。

7. 发明授权

US09747706B2 Image reconstructing apparatus and image reconstructing method 有权
公开(公告)号：US09747706B2
公开(公告)日：2017-08-29
申请号：US12699387
申请日：2010-02-03
申请人： Manabu Teshigawara , Takuzo Takayama , Tomoyasu Komori , Takaya Umehara
发明人： Manabu Teshigawara , Takuzo Takayama , Tomoyasu Komori , Takaya Umehara
IPC分类号： G06K9/00 , G06T11/00
CPC分类号： G06T11/006 , G06T2211/421
摘要： When a group of (pre-processed) projection data is stored into a projection-data storage unit, a Gaussian-based expansion-data creating unit creates a group of Gaussian-based expansion data that is expanded from each of the group of projection data through linear combination based on a plurality of Gaussian functions that is stored by a Gaussian-function storage unit and has different center points. A reconstruction-image creating unit then creates a reconstruction image by using the Gaussian-based expansion-data created by the Gaussian-based expansion-data creating unit, and stores the created reconstruction image into an image storage unit.

8. 发明授权

US08604439B2 Nuclear medicine diagnosis apparatus 有权
标题翻译：核医诊断仪
公开(公告)号：US08604439B2
公开(公告)日：2013-12-10
申请号：US12976046
申请日：2010-12-22
申请人： Manabu Teshigawara , Takuzo Takayama , Takaya Umehara , Tomoyasu Komori
发明人： Manabu Teshigawara , Takuzo Takayama , Takaya Umehara , Tomoyasu Komori
IPC分类号： G01T1/164
CPC分类号： G01T1/40 , A61B6/037 , A61B6/5205 , A61B6/5258 , G01T1/2985 , G01T7/005
摘要： According to one embodiment, a nuclear medicine diagnosis includes a light signal generating unit, photodetection unit, measurement unit, calculation unit, and storage unit. The light signal generating unit repeatedly generates light signals. The photodetection unit repeatedly generates first output signals corresponding to intensities of the light signals, repeatedly generates second output signals corresponding to intensities of gamma rays emitted from a subject. The measurement unit repeatedly measures light signal detection times and repeatedly measures gamma ray detection times. The calculation unit calculates a difference between a target gamma ray detection time and a target light signal detection time of the light signal detection times for each of the gamma ray detection times. The target light signal detection time is measured before the target gamma ray detection time. The storage unit stores the calculated difference in association with a target second output signal of the second output signals.
摘要翻译：根据一个实施例，核医学诊断包括光信号发生单元，光电检测单元，测量单元，计算单元和存储单元。光信号发生单元重复产生光信号。光检测单元重复产生对应于光信号强度的第一输出信号，重复产生对应于从被摄体发射的伽马射线强度的第二输出信号。测量单元重复测量光信号检测时间并重复测量伽马射线检测时间。计算单元计算每个伽马射线检测时间的目标伽马射线检测时间和光信号检测时间的目标光信号检测时间之间的差。在目标γ射线检测时间之前测量目标光信号检测时间。存储单元将所计算的差与第二输出信号的目标第二输出信号相关联地存储。

9. 发明申请

US20120312996A1 NUCLEAR MEDICINE IMAGING APPARATUS AND ANALYZING SYSTEM 有权
标题翻译：核医学成像装置与分析系统
公开(公告)号：US20120312996A1
公开(公告)日：2012-12-13
申请号：US13586949
申请日：2012-08-16
申请人： Manabu TESHIGAWARA , Takuzo TAKAYAMA , Yuuji YANAGIDA , Takaya UMEHARA
发明人： Manabu TESHIGAWARA , Takuzo TAKAYAMA , Yuuji YANAGIDA , Takaya UMEHARA
IPC分类号： G01T1/164
CPC分类号： G01N29/043 , G01N29/2418 , G01N29/2437 , G01N29/46
摘要： A PET apparatus includes an optical coupling detachment testing unit. In one example, the optical coupling detachment testing unit inputs an electric signal to a piezoelectric element or the like adhered to a detector module and generates a sound wave within the detector module. Further, the optical coupling detachment testing unit detects the sound wave propagated within the detector module and performs a frequency analysis on the detected sound wave. Subsequently, as a result of the analysis, the optical coupling detachment testing unit detects whether an optical coupling detachment has occurred by looking for a frequency distribution specific to a surface having an optical coupling detachment and/or comparing a frequency distribution with another frequency distribution from a previous test.
摘要翻译： PET装置包括光耦合脱离测试单元。在一个示例中，光耦合分离测试单元将电信号输入到粘附到检测器模块上的压电元件等，并在检测器模块内产生声波。此外，光耦合分离测试单元检测在检测器模块内传播的声波，并对检测到的声波执行频率分析。随后，作为分析的结果，光耦合分离测试单元通过寻找具有光耦合分离的表面的频率分布和/或将频率分布与另一频率分布进行比较来检测是否发生了光耦合分离以前的测试。

10. 发明申请

US20110163238A1 NUCLEAR MEDICINE DIAGNOSIS APPARATUS 有权
标题翻译：核医学诊断设备
公开(公告)号：US20110163238A1
公开(公告)日：2011-07-07
申请号：US12976046
申请日：2010-12-22
申请人： Manabu TESHIGAWARA , Takuzo Takayama , Takaya Umehara , Tomoyasu Komori
发明人： Manabu TESHIGAWARA , Takuzo Takayama , Takaya Umehara , Tomoyasu Komori
IPC分类号： G01T1/164
CPC分类号： G01T1/40 , A61B6/037 , A61B6/5205 , A61B6/5258 , G01T1/2985 , G01T7/005
摘要： According to one embodiment, a nuclear medicine diagnosis includes a light signal generating unit, photodetection unit, measurement unit, calculation unit, and storage unit. The light signal generating unit repeatedly generates light signals. The photodetection unit repeatedly generates first output signals corresponding to intensities of the light signals, repeatedly generates second output signals corresponding to intensities of gamma rays emitted from a subject. The measurement unit repeatedly measures light signal detection times and repeatedly measures gamma ray detection times. The calculation unit calculates a difference between a target gamma ray detection time and a target light signal detection time of the light signal detection times for each of the gamma ray detection times. The target light signal detection time is measured before the target gamma ray detection time. The storage unit stores the calculated difference in association with a target second output signal of the second output signals.
摘要翻译：根据一个实施例，核医学诊断包括光信号发生单元，光电检测单元，测量单元，计算单元和存储单元。光信号发生单元重复产生光信号。光检测单元重复产生对应于光信号强度的第一输出信号，重复产生对应于从被摄体发射的伽马射线强度的第二输出信号。测量单元重复测量光信号检测时间并重复测量伽马射线检测时间。计算单元计算每个伽马射线检测时间的目标伽马射线检测时间和光信号检测时间的目标光信号检测时间之间的差。在目标γ射线检测时间之前测量目标光信号检测时间。存储单元将所计算的差与第二输出信号的目标第二输出信号相关联地存储。

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