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Positron emission imaging using acquired cone-surfaces from opposing compton cameras

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3 Author(s)
Gillam, J.E. ; Sch. of Phys. & Mater. Eng., Monash Univ., Clayton, Vic. ; Beveridge, T.E. ; Lewis, R.A.

The Compton camera, a method of electronic collimation, introduces angular resolution into a gamma-ray imaging system without the need of a collimating device. Compton kinematics are used to deduce the incident trajectory of the photon, resulting in a cone-surface of possible source locations. So far this type of system has been successfully employed only as a single photon detection device. However, it has been proposed that positron emission tomography may also be enhanced by implementing the Compton camera. Cone-surfaces acquired from the collinear gamma rays produced in positron annihilation may be used to validate the resulting line of response. Moreover, single sided detections need no longer be redundant in image reconstruction due to the ability to perform cone-surface reconstruction in tandem with reconstruction from LoRs

Published in:

Nuclear Science Symposium Conference Record, 2004 IEEE  (Volume:5 )

Date of Conference:

16-22 Oct. 2004