Fast maximum entropy approximation in SPECT using the RBI-MAP algorithm

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A method is presented for approximating constrained maximum entropy (ME) reconstructions of SPECT data with modifications to a block-iterative MAP algorithm. It is shown that the RBI-MAP algorithm, if used with a dynamic scheme for estimating β, can approximate constrained ME solutions in twenty or fewer iterations. Finally, results for various methods of achieving feasible images on a simulation of T1-201 cardiac SPECT data are compared.

Original languageEnglish (US)
Title of host publicationIEEE Nuclear Science Symposium and Medical Imaging Conference
PublisherIEEE
Pages1157-1164
Number of pages8
ISBN (Print)0780350227
StatePublished - 1999
Externally publishedYes
EventProceedings of the 1998 IEEE Nuclear Science Symposium Conference Record - Toronto, Que, Can
Duration: Nov 8 1998Nov 14 1998

Publication series

NameIEEE Nuclear Science Symposium and Medical Imaging Conference
Volume2

Other

OtherProceedings of the 1998 IEEE Nuclear Science Symposium Conference Record
CityToronto, Que, Can
Period11/8/9811/14/98

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Radiology Nuclear Medicine and imaging

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