Title: Resolution properties of triple-headed conicidence imaging
Authors: D'Asseler, Y
Vandenberghe, S
Koole, Michel
Bouwens, L
Van de Walle, R
Lemahieu, I
Dierckx, RA #
Issue Date: 2002
Publisher: Ieee
Host Document: 2001 ieee nuclear science symposium, conference records, vols 1-4 pages:1181-1184
Conference: IEEE Nuclear Science Symposium SAN DIEGO, CA, NOV 04-10, 2001
Abstract: Due to the rising interest in clinical PET imaging, some manufacturers adapt two-headed gamma cameras to work in coincidence mode. Recently, the use of three heads for coincidence imaging has been suggested. The three heads can be placed in different configurations to achieve optimal sensitivity profiles. Two of these configurations are U-shape and triangular. As the average angle of incidence of the photons will differ for each configuration, it is expected that the resolution properties will be different Resolution will be degraded by angle of incidence effects, non-colinearity of the photons, and, for axial resolution, rebirming of the list mode data to two-dimensional projections. In this paper, we investigate the influence of camera configuration, detector radius and scatter medium on transaxial and axial resolution properties. FWHM and FWTM were measured for different values of these parameter, and compared with each other.
ISBN: 0-7803-7324-3
ISSN: 1082-3654
Publication status: published
KU Leuven publication type: IC
Appears in Collections:Nuclear Medicine & Molecular Imaging
# (joint) last author

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