Reconstruction of PET images with a compressed Monte Carlo based system matrix - a comparison to other Monte Carlo based algorithms

被引：0
作者：
Rehfeld, Niklas
Fippel, Matthias
Alber, Markus
机构：
来源：
2005 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOLS 1-5 | 2005年
关键词：
positron emission tomography; reconstruction; Monte Carlo; system matrix; compression;
D O I：
暂无
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A new method to compress the system matrix of a PET scanner calculated by Monte Carlo (MC) simulations is introduced. The proposed method reduces the size of the matrix drastically and allows a considerable reduction in the number of simulated particles. The images reconstructed with such a compressed matrix are compared to images reconstructed with other MC based algorithms, naively the dual-matrix algorithm [1] and the full-matrix algorithm (reconstruction using the uncompressed MC matrix).
引用
收藏
页码：2286 / 2290
页数：5
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