A new SPECT reconstruction algorithm based on the Novikov explicit inversion formula

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Abstract

We present a new reconstruction algorithm for single-photon emission computed tomography. The algorithm is based on the Novikov explicit inversion formula for the attenuated Radon transform with non-uniform attenuation. Our reconstruction technique can be viewed as a generalization of both the filtered backprojection algorithm and the Tretiak-Metz algorithm. We test the performance of the present algorithm in a variety of numerical experiments. Our numerical examples show that the algorithm is capable of accurate image reconstruction even in the case of strongly non-uniform attenuation coefficient, similar to that occurring in a human thorax.

Original languageEnglish (US)
Pages (from-to)293-306
Number of pages14
JournalInverse Problems
Volume17
Issue number2
DOIs
Publication statusPublished - Apr 2001
Externally publishedYes

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ASJC Scopus subject areas

  • Applied Mathematics
  • Mathematical Physics
  • Physics and Astronomy(all)
  • Statistical and Nonlinear Physics

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