Sorin V. Cora - Anaheim CA, US Mark E. Desilets - San Jose CA, US Dumitru Dragan - Fremont CA, US Moataz Karmalawy - San Ramon CA, US Michael J. Petrillo - Pleasanton CA, US
A apparatus particularly well suited for use in medical imaging includes radiation sensitive detectors () which detect gamma radiation indicative of radionuclide decays in an examination region (). The detectors () are supported by generally c-shaped support () for rotation about a detector rotation axis (). The support () is farther attached to a pivot joint () which allows adjustment of the detector rotation axis (). The support () may also be translated in two degrees of freedom to so that the detectors () orbit the examination region () in a non-circular orbit.
Randoms Correction Using Artificial Trigger Pulses In A Gamma Camera System
Michael J. Geagan - Wayne PA Michael J. Petrillo - Pleasanton CA Thomas E. Scharf - San Jose CA Donald R. Wellnitz - Pleasanton CA
Assignee:
ADAC Laboratories - Milpitas CA
International Classification:
G01T 1166
US Classification:
25036304
Abstract:
A technique for correcting for random coincidences in a gamma camera system is provided. The system includes a pair of scintillation detectors coupled to a processing system and is configured to detect radiation coincidences. Each detector generates trigger pulses in response to scintillation events to generate a plurality of event-based trigger pulses. Each detector includes a pulse generator, which generates a plurality of artificial trigger pulses. When an artificial trigger pulse in one detector occurs in coincidence with an event-based trigger pulse in the other detector, data is registered by the corresponding detectors, and the artificial trigger pulse is associated with a predetermined energy level. The data processing system examines the data to identify singles events that were registered as a result of artificial trigger pulses and prevents such singles events from contributing to the coincidence images. Instead, such singles events are used to generate a singles image for each detector.
License Records
Michael Petrillo
License #:
RS141022A - Expired
Category:
Real Estate Commission
Type:
Real Estate Salesperson-Standard
Googleplus
Michael Petrillo
Education:
California State University, Sacramento - Applied Mathematics and Statistics