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1.发明申请POSITRON EMISSION TOMOGRAPHY APPARATUS AND NUCLEAR MEDICAL IMAGE GENERATING METHOD 审中-公开POSITRON排放测量装置和核医学图像生成方法公开(公告)号：US20100264320A1
公开(公告)日：2010-10-21
申请号：US12754857
申请日：2010-04-06
IPC分类号： G01T1/164
CPC分类号： G01T1/2985 , A61B6/037
摘要： In a case that a gamma ray has entered into a plurality of scintillators adjacent to each other simultaneously, a detector detects the gamma ray having entered simultaneously. A position calculator calculates the ratio of wave heights representing the energies of the detected gamma ray. The position calculator obtains a trajectory of such a gamma ray that a ratio of distances passed by the gamma ray inside the plurality of scintillators, respectively, coincides with the ratio of the wave heights. The position calculator obtains an intersection between the boundary of the plurality of scintillators and the trajectory, as a passing position of the gamma ray. A reconstructing part executes a back projection process with the trajectory passing through the calculated passing position as a projection position.
摘要翻译： 在伽马射线同时进入到彼此相邻的多个闪烁体的情况下，检测器检测同时进入的伽马射线。 位置计算器计算表示所检测的伽马射线能量的波高的比率。 位置计算器获得这样的伽马射线的轨迹，即，通过多个闪烁体内的伽马射线的距离的比率分别与波高的比率一致。 位置计算器获得多个闪烁体的边界与轨迹之间的交点，作为伽马射线的通过位置。 重建部件执行背投影处理，其中轨迹通过计算出的通过位置作为投影位置。
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公开(公告)号：US09747706B2
公开(公告)日：2017-08-29
申请号：US12699387
申请日：2010-02-03
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.
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公开(公告)号：US08604439B2
公开(公告)日：2013-12-10
申请号：US12976046
申请日：2010-12-22
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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公开(公告)号：US20110163238A1
公开(公告)日：2011-07-07
申请号：US12976046
申请日：2010-12-22
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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公开(公告)号：US08373131B2
公开(公告)日：2013-02-12
申请号：US13586949
申请日：2012-08-16
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。
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