A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
3D-OSEM reconstruction from truncated data in pinhole SPECT
Tekijät: Zeniya T, Watabe H, Sohlberg A, Inomata T, Kudo H, Iida H
Julkaisuvuosi: 2007
Journal: IEEE conference record - Nuclear Science Symposium & Medical Imaging Conference
Tietokannassa oleva lehden nimi: 2007 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOLS 1-11
Lehden akronyymi: IEEE NUCL SCI CONF R
Aloitussivu: 4205
Lopetussivu: 4207
Sivujen määrä: 3
ISBN: 978-1-4244-0922-8
ISSN: 1082-3654
Tiivistelmä
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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