Open Journal of Radiology
Volume 3, Issue 2 (June 2013)
ISSN Print: 2164-3024 ISSN Online: 2164-3032
Google-based Impact Factor: 0.33 Citations
A GATE Simulation Study of the Siemens Biograph DUO PET/CT System ()
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ABSTRACT
This is a GATE-simulation study of the Siemens Biograph DUO PET/CT system. It reports effects of changes in the thickness of the employed Lutetium Oxyorthosilicate(LSO) detectors. The PET/CT, a human body phantom and a cylindrical F-18 FDG source were simulated. Validation measurements were conducted. The results indicate that LSO thickness increase degrades spatial resolution, improves relative energy resolution from 9.0% to 11.3% and increases signal-to-noise-ratio from 0.81 to 1.17. Thicker LSO crystals present greater axial sensitivity so as the detection efficiency of PET would be significantly enhanced.
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