发明名称 |
Method of and software for calculating a scatter estimate for tomographic scanning and system for tomographic scanning |
摘要 |
The method calculates a scatter estimate for annihilation photons in a subject having a distribution of attenuation. The method can be used for scatter correction of detection data from a positron emission tomographic scanner. The method uses the following steps: —select a first scatter point S1 and a second scatter point S2, —determine a first scatter probability for scattering of a photon at scatter point S1 and a second scatter probability for scattering of a photon at scatter point S2, —determine an integral of the attenuation over a line connecting S1 and S2, —multiply the integral and the scatter probabilities and use the product in the calculation of the scatter estimate.
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申请公布号 |
US7714291(B2) |
申请公布日期 |
2010.05.11 |
申请号 |
US20060994580 |
申请日期 |
2006.07.07 |
申请人 |
HAMMERSMITH IMANET LIMITED |
发明人 |
THIELEMANS KRIS FILIP JOHAN JULES;TSOUMPAS CHARALAMPOS |
分类号 |
G01T1/161;G01T1/164;G01T1/29 |
主分类号 |
G01T1/161 |
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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