发明授权
US08299438B2 Model based estimation of a complete or partial positron emission tomography attenuation map using maximum likelihood expectation maximization
有权
使用最大似然预期最大化的基于全面或部分正电子发射断层扫描衰减图的模型估计
- 专利标题： Model based estimation of a complete or partial positron emission tomography attenuation map using maximum likelihood expectation maximization
- 专利标题（中）： 使用最大似然预期最大化的基于全面或部分正电子发射断层扫描衰减图的模型估计
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申请号： US12458575申请日： 2009-07-16
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公开(公告)号： US08299438B2公开(公告)日： 2012-10-30
- 发明人: Matthias Fenchel , Ralf Ladebeck , Christian J. Michel , Charles C. Watson
- 申请人： Matthias Fenchel , Ralf Ladebeck , Christian J. Michel , Charles C. Watson
- 申请人地址： US PA Malvern DE Munich
- 专利权人： Siemens Medical Solutions USA, Inc.,Siemens Aktiengesellschaft
- 当前专利权人： Siemens Medical Solutions USA, Inc.,Siemens Aktiengesellschaft
- 当前专利权人地址： US PA Malvern DE Munich
- 代理机构： Harness, Dickey & Pierce, P.L.C.
- 主分类号： G06F17/10
- IPC分类号： G06F17/10
摘要：
Example embodiments are directed to a method of correcting attenuation in a magnetic resonance (MR) scanner and a positron emission tomography (PET) unit. The method includes acquiring PET sinogram data of an object within a field of view of the PET unit. The method further includes producing an attenuation map based on a maximum likelihood expectation maximization (MLEM) of a parameterized model instance and the PET sinogram data.
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