A new preprocessor for the SP-3000 series of time-of-flight positron emission tomographs

Journal Article · Sun Aug 01 04:00:00 EDT 1993 · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/23.256715· OSTI ID:6011795

Lewellen, T K; Kohlmyer, S G; Ehlert, D C; Miyaoka, R M ^[1]

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1. Univ. of Washington Medical Center, Seattle, WA (United States)

A new preprocessor for the University of Washington modified SP-3000 positron emission tomograph was designed and built. The device improved the maximum coincidence counting rate of the machine to greater than 450,000 events per second in preprocessed mode. The new hardware also improved image quality by implementing time-of-flight offset corrections by crystal pairs, position and time-of-flight gating for the rotating sector source (for attenuation scans), and supporting randoms corrections based on estimating singles rates from rejected time-of-flight events. The improved hardware can be installed on any SP-3000 series tomograph with modest modifications to calibration and data acquisition software.

• OSTI ID: 6011795
• Journal Information: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States) Vol. 40:4 part 1; ISSN 0018-9499; ISSN IETNAE
• Country of Publication: United States
• Language: English

Related Subjects

550601* -- Medicine-- Unsealed Radionuclides in Diagnostics
62 RADIOLOGY AND NUCLEAR MEDICINE
ACCURACY
CAMERAS
COMPUTERIZED TOMOGRAPHY
COMPUTERS
DATA ACQUISITION
DESIGN
DIAGNOSTIC TECHNIQUES
EMISSION COMPUTED TOMOGRAPHY
GAMMA CAMERAS
OPTIMIZATION
POSITRON CAMERAS
POSITRON COMPUTED TOMOGRAPHY
TIME-OF-FLIGHT METHOD
TOMOGRAPHY