发明申请
US20100086101A1 METHOD OF AND SOFTWARE FOR CALCULATING A SCATTER ESTIMATE FOR TOMOGRAPHIC SCANNING AND SYSTEM FOR TOMOGRAPHIC SCANNING
失效
计算用于TOMOGRAPHIC扫描的散射估计的方法和软件以及用于TOMOGRAPHIC扫描的系统
- 专利标题： METHOD OF AND SOFTWARE FOR CALCULATING A SCATTER ESTIMATE FOR TOMOGRAPHIC SCANNING AND SYSTEM FOR TOMOGRAPHIC SCANNING
- 专利标题（中）： 计算用于TOMOGRAPHIC扫描的散射估计的方法和软件以及用于TOMOGRAPHIC扫描的系统
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申请号： US12518334申请日： 2007-12-18
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公开(公告)号： US20100086101A1公开(公告)日： 2010-04-08
- 发明人: Kris Filip Johan Jules Thielemans , Charalampos Panos Tsoumpas , Floribertus P. M. Heukensfeldt Jansen
- 申请人： Kris Filip Johan Jules Thielemans , Charalampos Panos Tsoumpas , Floribertus P. M. Heukensfeldt Jansen
- 国际申请： PCT/GB07/04874 WO 20071218
- 主分类号： H05G1/60
- IPC分类号： H05G1/60 ; G06K9/00
摘要：
The method calculates a scatter estimate for scatter correction of detection data from a subject in a positron emission tomographic scanner. The detection data represent the scattered events and unscattered events of annihilation photons emitted in the subject. The method uses the following steps: determine an estimate of the unscattered events; determine a simulation of the scattered events; determine a value of a scaling factor by fitting the sum of the estimate of the unscattered events and a product of the scaling factor and the simulation of the scattered events to the detection data; and determine the scatter estimate as the product of the scaling factor having said value and the simulation of the scattered events.