Information analysis of single photon emission computed tomography with count losses.

  title={Information analysis of single photon emission computed tomography with count losses.},
  author={Alfred O. Hero and Lingxiong Shao},
  journal={IEEE transactions on medical imaging},
  volume={9 2},
  • A. Hero, L. Shao
  • Published 1990
  • Physics
  • IEEE transactions on medical imaging
An analysis is presented of the information transfer from emitter-space to detector-space in single photon emission computed tomography (SPECT) systems. The analysis takes into account the fact that count loss side information is generally not available at the detector. Side information corresponds to the number gamma-rays lost deleted due to lack of interaction with the detector data. It is shown that the information transfer depends on the structure of the likelihood function of the emitter… 

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