Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
Volume 591, Issue 1, Pages 272-275Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nima.2008.03.072
Keywords
CCD-based gamma camera; coded apertures; GPGPU; near-field imaging; gamma-ray microscope
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Funding
- NIBIB NIH HHS [P41 EB002035-07, P41 EB002035] Funding Source: Medline
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Recent advances have been made with the BazookaSPECT detector, a high-resolution CCD-based gamma camera, which utilizes an MCP-based image intensifier for upfront optical gain. Operating the gamma camera at high frame rates leads to a massive amount of data throughput, thereby inducing the need for real-time processing. We have developed and implemented a list-mode algorithm which allows for real-time data acquisition and processing at high frame rates. This is accomplished with a graphics processing unit (GPU), which provides processing capabilities in addition to the CPU. We have also developed a gamma-ray microscope based on the BazookaSPECT detector and micro-coded apertures. Experimental phantom images show the gamma-ray microscope having an estimated reconstruction resolution of similar to 30 mu m, an unprecedented resolution in gamma-ray imaging. (C) 2008 Elsevier B.V. All rights reserved.
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