Design studies of a depth encoding large aperture PET camera

Journal Article · Tue Aug 01 04:00:00 EDT 1995 · IEEE Transactions on Nuclear Science

DOI:https://doi.org/10.1109/23.467751· OSTI ID:148046

Moisan, C; Rogers, J G; Buckley, K R; Ruth, T J; Stazyk, M W; Tsang, G ^[1]

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1. TRIUMF, Vancouver, British Columbia (Canada)

The feasibility of a wholebody PET tomograph with the capacity to correct for the parallax error induced by the Depth-Of-Interaction of {gamma}-rays is assessed through simulation. The experimental energy, depth, and transverse position resolutions of BGO block detector candidates are the main inputs to a simulation that predicts the point source resolution of the Depth Encoding Large Aperture Camera (DELAC). The results indicate that a measured depth resolution of 7 mm (FWHM) is sufficient to correct a substantial part of the parallax error for a point source at the edge of the Field-Of-View. A search for the block specifications and camera ring radius that would optimize the spatial resolution and its uniformity across the Field-Of-View is also presented.

• OSTI ID: 148046
• Report Number(s): CONF-941061--
• Journal Information: IEEE Transactions on Nuclear Science, Journal Name: IEEE Transactions on Nuclear Science Journal Issue: 4Pt1 Vol. 42; ISSN 0018-9499; ISSN IETNAE
• Country of Publication: United States
• Language: English

Related Subjects

55 BIOLOGY AND MEDICINE
BASIC STUDIES
DESIGN
IMAGE PROCESSING
POSITRON CAMERAS
POSITRON COMPUTED TOMOGRAPHY
SPATIAL RESOLUTION
WHOLE-BODY COUNTERS