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Proceedings Paper

3D position-sensitive scintillation detectors for a high-resolution loco-regional PET imaging system (Conference Presentation)
Author(s): David Hsu; David Freese; Derek Innes; Craig S. Levin
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Paper Abstract

We are building a dual-panel positron emission tomography (PET) system prototype that enables focused imaging of local regions of interest of the body with 1 mm3 spatial resolution, The detector panels are built from novel 3D position sensitive scintillation (3DPSS) detectors comprising arrays of 1x1x1 mm3 LYSO scintillation crystal elements coupled to position-sensitive avalanche photodiodes (PSAPD). At the present state of system construction, the measured energy resolution over 98,304 crystal elements coupled to 1,536 PSAPDs is 11.34%, and 76.2% (74,938) of the system LYSO crystal elements are found to have greater than 99% event positioning accuracy. Imaging studies performed with a high-resolution phantom demonstrate resolution of the smallest (1.2 mm diameter) features. Besides enabling 1 mm resolution clinical PET studies, we describe other novel ways we are planning to exploit the 3DPSS detector information.

Paper Details

Date Published: 19 September 2017
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Proc. SPIE 10393, Radiation Detectors in Medicine, Industry, and National Security XVIII, 103930O (19 September 2017); doi: 10.1117/12.2279354
Show Author Affiliations
David Hsu, Molecular Imaging Instrumentation Lab., Stanford School of Medicine (United States)
David Freese, Molecular Imaging Instrumentation Lab., Stanford School of Medicine (United States)
Derek Innes, Molecular Imaging Instrumentation Lab., Stanford School of Medicine (United States)
Craig S. Levin, Molecular Imaging Instrumentation Lab., Stanford School of Medicine (United States)


Published in SPIE Proceedings Vol. 10393:
Radiation Detectors in Medicine, Industry, and National Security XVIII
Gary P. Grim; Lars R. Furenlid; H. Bradford Barber, Editor(s)

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