Refereed journal article or data article (A1)
3D-OSEM reconstruction from truncated data in pinhole SPECT
List of Authors: Zeniya T, Watabe H, Sohlberg A, Inomata T, Kudo H, Iida H
Publication year: 2007
Journal: IEEE conference record - Nuclear Science Symposium & Medical Imaging Conference
Journal name in source: 2007 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOLS 1-11
Journal acronym: IEEE NUCL SCI CONF R
Start page: 4205
End page: 4207
Number of pages: 3
ISBN: 978-1-4244-0922-8
ISSN: 1082-3654
Abstract
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.
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.
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