3D Reconstruction Optimization for Compton Camera Events

被引：0
|
作者：
Mikeli, M. [1 ]
Zioga, M. [1 ]
Eleftheriou, A. [1 ]
Pafilis, Ch. [2 ,3 ]
Rapsomanikis, A. -N. [1 ]
Stiliaris, E. [1 ,4 ]
机构：
[1] Univ Athens, Phys Dept, Athens 15771, Greece
[2] Univ Athens, Phys Dept, Athens 15341, Greece
[3] Greek Atom Energy Commiss EEAE, Athens 15341, Greece
[4] IASA, Athens 15771, Greece
来源：
2015 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE (NSS/MIC) | 2015年
关键词：
D O I：
暂无
中图分类号：
R8 [特种医学]; R445 [影像诊断学];
学科分类号：
1002 ; 100207 ; 1009 ;
摘要：
Due to the nature of the Compton Camera operation, the detection efficiency for distributed gamma-sources is strongly affected by the angular acceptance and the interaction probability of the photon for a given tracer energy. In order to overcome imposed artifacts and other deformation effects in the final image, an optimization method for the reconstruction procedure is proposed. It is based on a GEANT4/GATE simulation study and the parameterization of the recorded planar distortion of homogeneous plane sources placed at different distances inside the cameras field of view. The efficiency of this method is presented for a variety of 3D reconstructed phantoms and the achieved improvement in spatial resolution is discussed.
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页数：4
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