3D-OSEM reconstruction from truncated data in pinhole SPECT

被引：0
|
作者：
Zeniya, Tsutomu [1 ]
Watabe, Hiroshi [1 ]
Sohlberg, Antti [2 ,3 ]
Inomata, Toru [1 ]
Kudo, Hiroyuki [4 ]
Iida, Hidehiro [1 ]
机构：
[1] Natl Cardiovasc Ctr, Res Inst, Adv Med Engn Ctr, Dept Investigat Radiol, 5-7-1 Fujishirodai, Osaka 5658565, Japan
[2] Natl Cardiovasc Ctr Hosp & Res Inst, Osaka, Japan
[3] Kuopio Univ Hosp, Dept Clin Physiol & Nucl Med, Kuopio, Finland
[4] Univ Tsukuba, Grad Sch Syst & Informat Engn, Dept Comp Sci, Tsukuba, Ibaraki, Japan
来源：
2007 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOLS 1-11 | 2007年
基金：
日本科学技术振兴机构;
关键词：
D O I：
暂无
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Pinhole SPECT can provide high-resolution image with high sensitivity when a collimator is close to an object. However, truncation causes artifact and decreases quantitative accuracy. Defrise et al proposed new reconstruction theory to prevent overestimation due to truncation. In this paper, we applied Defrise theory to three-dimensional pinhole SPECT reconstruction and validated our implementation by computer simulation.
引用
收藏
页码：4205 / 4207
页数：3
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