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1. 发明申请

US20170086761A1 APPARATUS AND METHOD FOR PILE-UP CORRECTION IN PHOTON-COUNTING DETECTOR 审中-公开
公开(公告)号：US20170086761A1
公开(公告)日：2017-03-30
申请号：US14868826
申请日：2015-09-29
申请人： General Electric Company
发明人： Geng Fu , Peter Michael Edic , Brian David Yanoff , Jianjun Guo , Vladimir A. Lobastov , Yannan Jin
IPC分类号： A61B6/00 , A61B6/03
CPC分类号： A61B6/4241 , A61B6/032 , A61B6/4208 , A61B6/4233 , A61B6/4435 , A61B6/4441 , A61B6/461 , A61B6/467 , A61B6/5205 , A61B6/54
摘要： Some embodiments are associated with an input signal comprising a first and a second photon event incident on a photon-counting semiconductor detector. A relatively slow charge collection shaping amplifier may receive the input signal and output an indication of a total amount of energy associated with the superposition of the first and second events. A relatively fast charge collection shaping amplifier may receive the input signal and output an indication that is used to allocate a first portion of the total amount of energy to the first event and a second portion of the total amount of energy to the second event.

2. 发明授权

US10117626B2 Apparatus and method for pile-up correction in photon-counting detector 有权
公开(公告)号：US10117626B2
公开(公告)日：2018-11-06
申请号：US14868826
申请日：2015-09-29
申请人： General Electric Company
发明人： Geng Fu , Peter Michael Edic , Brian David Yanoff , Jianjun Guo , Vladimir A. Lobastov , Yannan Jin
IPC分类号： A61B6/03 , A61B6/00
摘要： Some embodiments are associated with an input signal comprising a first and a second photon event incident on a photon-counting semiconductor detector. A relatively slow charge collection shaping amplifier may receive the input signal and output an indication of a total amount of energy associated with the superposition of the first and second events. A relatively fast charge collection shaping amplifier may receive the input signal and output an indication that is used to allocate a first portion of the total amount of energy to the first event and a second portion of the total amount of energy to the second event.

3. 发明授权

US09220469B2 Systems and methods for correcting detector errors in computed tomography imaging 有权
标题翻译：用于校正计算机断层摄影成像中检测器误差的系统和方法
公开(公告)号：US09220469B2
公开(公告)日：2015-12-29
申请号：US14145018
申请日：2013-12-31
申请人： General Electric Company
发明人： Yannan Jin , Peter Michael Edic , Vladimir A. Lobastov , Hewei Gao , Geng Fu
IPC分类号： A61B6/00 , A61B6/03
CPC分类号： A61B6/4241 , A61B6/032 , A61B6/482 , G01T1/171
摘要： A system includes an energy-discriminating, photon-counting X-ray detector, comprising a plurality of detector cells adapted to produce projection data in response to X-ray photons and to produce an electrical signal having a recorded count for the energy bins and a total energy intensity. The system also includes data processing circuitry adapted to receive the electrical signal, to generate a simulated count rate for each of the energy bins by using the total energy intensity, to determine a set of energy intensity dependent material decomposition vectors, and, for the measured projection data, to perform material decomposition.
摘要翻译：一种系统包括能量鉴别光子计数X射线检测器，其包括多个检测器单元，其适于响应于X射线光子产生投影数据并产生具有针对能量仓的记录计数的电信号，以及总能量强度。该系统还包括适于接收电信号的数据处理电路，通过使用总能量强度来产生每个能量箱的模拟计数率，以确定一组依赖于能量强度的材料分解向量，并且对于所测量的投影数据，进行物质分解。

4. 发明申请

US20150182176A1 SYSTEMS AND METHODS FOR CORRECTING DETECTOR ERRORS IN COMPUTED TOMOGRAPHY IMAGING 有权
标题翻译：用于校正计算机图像成像中检测器错误的系统和方法
公开(公告)号：US20150182176A1
公开(公告)日：2015-07-02
申请号：US14145018
申请日：2013-12-31
申请人： General Electric Company
发明人： Yannan Jin , Peter Michael Edic , Vladimir A. Lobastov , Hewei Gao , Geng Fu
IPC分类号： A61B6/00 , A61B6/03
CPC分类号： A61B6/4241 , A61B6/032 , A61B6/482 , G01T1/171
摘要： A system includes an energy-discriminating, photon-counting X-ray detector, comprising a plurality of detector cells providing measurements corresponding to at least two energy bins and being adapted to produce projection data in response to X-ray photons that reach the X-ray detector and to produce an electrical signal having a recorded count for the energy bins and a total energy intensity. The system also includes data processing circuitry adapted to receive the electrical signal from one or more of the plurality of detector cells, to generate a simulated count rate for each of the energy bins by using the total energy intensity in a detector pile-up model, to determine a set of energy intensity dependent material decomposition vectors, and, for the projection data measured by one or more of the plurality of detector cells, to perform material decomposition by modeling the simulated count rate for each of the energy bins and utilizing a material decomposition vector selected from the set of energy intensity dependent material decomposition vectors and corresponding to the measured energy intensity from one or more of the plurality of detector cells.
摘要翻译：一种系统包括能量鉴别光子计数X射线检测器，其包括多个检测器单元，其提供对应于至少两个能量箱的测量值，并且适于响应于到达X射线的X射线光子产生投影数据，并且产生具有用于能量箱的记录计数和总能量强度的电信号。该系统还包括适于从多个检测器单元中的一个或多个接收电信号的数据处理电路，通过使用检测器堆积模型中的总能量强度来产生每个能量箱的模拟计数率，以确定一组依赖于能量强度的材料分解向量，并且对于由多个检测器单元中的一个或多个检测器单元测量的投影数据，通过对每个能量箱的模拟计数率进行建模并利用材料来执行材料分解所述分解矢量选自所述一组能量强度依赖材料分解向量，并对应于来自所述多个检测器单元中的一个或多个的所测量的能量强度。

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