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A fast projector/backprojector pair modeling the nonstationary scatter response function for scatter compensation in SPECT imaging

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3 Author(s)
Frey, E.C. ; North Carolina Univ., Chapel Hill, NC, USA ; Ju, Z.-W. ; Tsui, B.M.W.

The authors present a novel fast algorithm for implementing SDSE (slab derived scattered estimation) that reduces computation time by a factor of 16 compared to a direct implementation. Projection data computed with the new algorithm compare well with that from Monte Carlo simulations. When combined with faster computers and iterative reconstruction algorithms that converge rapidly, this fast projector/backprojector pair makes iterative-reconstruction-based scatter compensation feasible

Published in:
Nuclear Science Symposium and Medical Imaging Conference, 1992., Conference Record of the 1992 IEEE

Date of Conference: 25-31 Oct 1992

Page(s):
1032 - 1034 vol.2
Meeting Date :
25 Oct 1992-31 Oct 1992
Print ISBN:
0-7803-0884-0
INSPEC Accession Number:
4705573
Conference Location :
Orlando, FL
Digital Object Identifier :
10.1109/NSSMIC.1992.301466

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