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公开(公告)号：US09772408B2
公开(公告)日：2017-09-26
申请号：US14112535
申请日：2011-05-10
申请人： Qingguo Xie , Peng Xiao , Xi Wang , Na Li , Yuanbao Chen , Wei Liu
发明人： Qingguo Xie , Peng Xiao , Xi Wang , Na Li , Yuanbao Chen , Wei Liu
CPC分类号： G01T1/2006 , G01T1/17
摘要： A method for extracting scintillation pulse information includes followed steps: 1. obtaining a peak value of the scintillation pulse in a certain energy spectrum, and setting at least three threshold voltages according to the peak value; 2. determining the time when the scintillation pulse passes through the each threshold voltage, wherein each time value and its corresponding threshold voltage form a sampling point; 3. selecting multiple sampling points as sampling points for reconstructing and reconstructing pulse waveform; 4. obtaining the data of original scintillation pulse by using reconstructed pulse waveform. A device for extracting scintillation pulse information includes a threshold voltage setting module (100), a time sampling module (200), a pulse reconstruction module (300) and an information acquiring module (400).
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公开(公告)号：US20140052414A1
公开(公告)日：2014-02-20
申请号：US14112535
申请日：2011-05-10
申请人： Qingguo Xie , Peng Xiao , Xi Wang , Na Li , Yuanbao Chen , Wei Liu
发明人： Qingguo Xie , Peng Xiao , Xi Wang , Na Li , Yuanbao Chen , Wei Liu
IPC分类号： G01T1/20
CPC分类号： G01T1/2006 , G01T1/17
摘要： A method for extracting scintillation pulse information includes followed steps: 1. obtaining a peak value of the scintillation pulse in a certain energy spectrum, and setting at least three threshold voltages according to the peak value; 2. determining the time when the scintillation pulse passes through the each threshold voltage, wherein each time value and its corresponding threshold voltage form a sampling point; 3. selecting multiple sampling points as sampling points for reconstructing and reconstructing pulse waveform; 4. obtaining the data of original scintillation pulse by using reconstructed pulse waveform. A device for extracting scintillation pulse information includes a threshold voltage setting module (100), a time sampling module (200), a pulse reconstruction module (300) and an information acquiring module (400).
摘要翻译： 提取闪烁脉冲信息的方法包括以下步骤：1.获得特定能谱中的闪烁脉冲的峰值，并根据峰值设定至少三个阈值电压; 2.确定闪烁脉冲通过每个阈值电压的时间，其中每个时间值及其相应的阈值电压形成采样点; 3.选择多个采样点作为重建和重构脉搏波形的采样点; 4.通过重建脉冲波形获得原始闪烁脉冲的数据。 用于提取闪烁脉冲信息的装置包括阈值电压设定模块（100），时间采样模块（200），脉冲重建模块（300）和信息获取模块（400）。
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公开(公告)号：US10930031B2
公开(公告)日：2021-02-23
申请号：US14408935
申请日：2012-08-14
申请人： Qingguo Xie , Yuanbao Chen , Jun Zhu , Xin Chen , Zhongyi Wu , Luyao Wang
发明人： Qingguo Xie , Yuanbao Chen , Jun Zhu , Xin Chen , Zhongyi Wu , Luyao Wang
摘要： A method for synchronizing list-mode data of single events in a PET imaging includes: acquiring list-mode data of single events of each independent detector module, calculating a probability density of time intervals between occurrences of single events in detector module and setting initial parameters, determining detection starting time difference of each detector module with iterative peak searching and graded time window, and performing synchronization correction and coincidence discrimination on the single event data in each detector module based on the detection starting time difference. A system for synchronizing list-mode data of single events in a PET imaging includes: a data acquisition and frequency difference compensation module, an initial parameter setting module, a coarse time scale coincidence module, a fine time scale coincidence module and a data synchronization correction and coincidence discrimination module.
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