发明名称 |
Resolution enhancement apparatus and method for dual head gamma camera system capable of coincidence imaging |
摘要 |
The present invention provides an apparatus and method for enhancing the resolution of a Positron Emission Tomography (PET) image in a Nuclear Camera System that is configurable to performs both PET and SPECT imaging. The apparatus includes a crystal that interacts with a gamma ray to create a scintillation event within the surface of the crystal. The gamma rays that impinge the crystal have an incident angle that is limited by a field of view of the crystal. Positioned behind the crystal is a detector that responds to the light photons released by the scintillation event and registers a coordinate value of the scintillation event. Coupled to the detector is a resolution enhancer that generates an in-crystal plane displacement correction value for the coordinate value registered by the detector. The in-crystal plane displacement correction value is then combined with the coordinate value to compute the actual entry point of the gamma ray into the crystal.
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申请公布号 |
US5760401(A) |
申请公布日期 |
1998.06.02 |
申请号 |
US19970846525 |
申请日期 |
1997.04.29 |
申请人 |
ADAC LABORATORIES |
发明人 |
NELLEMAN, PETER;BERTELSEN, HUGO;HINES, HORACE |
分类号 |
G01T1/164;G01T1/166;G01T1/202;G01T1/29;(IPC1-7):G01T1/164;G01T1/172 |
主分类号 |
G01T1/164 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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