发明授权
US09291725B2 Random coincidence reduction in positron emission tomography using tangential time-of-flight mask
有权
使用切向飞行时间掩码的正电子发射断层扫描随机重合减少
- 专利标题： Random coincidence reduction in positron emission tomography using tangential time-of-flight mask
- 专利标题（中）： 使用切向飞行时间掩码的正电子发射断层扫描随机重合减少
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申请号： US13472533申请日： 2012-05-16
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公开(公告)号： US09291725B2公开(公告)日： 2016-03-22
- 发明人: Wenli Wang , Xiaofeng Niu
- 申请人： Wenli Wang , Xiaofeng Niu
- 申请人地址： JP Tokyo JP Otawara-shi
- 专利权人： Kabushiki Kaisha Toshiba,Toshiba Medical Systems Corporation
- 当前专利权人： Kabushiki Kaisha Toshiba,Toshiba Medical Systems Corporation
- 当前专利权人地址： JP Tokyo JP Otawara-shi
- 代理机构： Oblon, McClelland, Maier & Neustadt, L.L.P.
- 主分类号： G01T1/29
- IPC分类号： G01T1/29 ; A61B6/03
摘要：
A method and apparatus for reducing random events in positron emission tomography (PET) list mode data, the method including the steps of obtaining, for a PET scanner having a given reconstruction field of view (FOV), time-of-flight (TOF) prompt list-mode count data that includes TOF information, the TOF prompt list-mode count data including a plurality of entries; and filtering the obtained prompt list-mode count data by removing those entries in the obtained prompt list-mode count data that represent emission points lying outside a tangential TOF mask to obtain filtered list-mode count data.
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