Invention Grant
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
- Patent Title: Model based estimation of a complete or partial positron emission tomography attenuation map using maximum likelihood expectation maximization
- Patent Title (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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Application No.: US12458575Application Date: 2009-07-16
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Publication No.: US08299438B2Publication Date: 2012-10-30
- Inventor: Matthias Fenchel , Ralf Ladebeck , Christian J. Michel , Charles C. Watson
- Applicant: Matthias Fenchel , Ralf Ladebeck , Christian J. Michel , Charles C. Watson
- Applicant Address: US PA Malvern DE Munich
- Assignee: Siemens Medical Solutions USA, Inc.,Siemens Aktiengesellschaft
- Current Assignee: Siemens Medical Solutions USA, Inc.,Siemens Aktiengesellschaft
- Current Assignee Address: US PA Malvern DE Munich
- Agency: Harness, Dickey & Pierce, P.L.C.
- Main IPC: G06F17/10
- IPC: G06F17/10
Abstract:
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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