Heterogeneity of SPECT bull's-eyes in normal dogs: comparison of attenuation compensation algorithms

E. V.R. DiBella, R. L. Eisner, L. S. Schmarkey, A. B. Barclay, R. E. Patterson, D. J. Nowak, D. S. Lalush, B. M.W. Tsui

Research output: Contribution to conferencePaper

Abstract

In normal dogs, SPECT Tc-99m Sestamibi (MIBI) and Tl-201 myocardial perfusion images reconstructed with filtered backprojection (FBP) show a large decrease of counts in the septal wall (S) compared to the lateral wall (L). This paper evaluates the iterative method of Chang at 0 and 1 iterations (Chang0 and Chang1), and the Maximum Likelihood-Expectation Maximization with attenuation compensation (ML-EM-ATN) algorithm on data acquired from 5 normal dogs and from simulated projection data using a homogeneous count-density model of a normal canine myocardium in the attenuation field measured in one dog. It is indicated that ML-EM-ATN and Chang1 result in improved uniformity, as measured by the S/L ratio.

Original languageEnglish (US)
Pages1725-1729
Number of pages5
StatePublished - Jan 1 1995
Externally publishedYes
EventProceedings of the 1994 Nuclear Science Symposium and Medical Imaging Conference. Part 1 (of 4) - Norfolk, VA, USA
Duration: Oct 30 1994Nov 5 1994

Other

OtherProceedings of the 1994 Nuclear Science Symposium and Medical Imaging Conference. Part 1 (of 4)
CityNorfolk, VA, USA
Period10/30/9411/5/94

ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition
  • Industrial and Manufacturing Engineering

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    DiBella, E. V. R., Eisner, R. L., Schmarkey, L. S., Barclay, A. B., Patterson, R. E., Nowak, D. J., Lalush, D. S., & Tsui, B. M. W. (1995). Heterogeneity of SPECT bull's-eyes in normal dogs: comparison of attenuation compensation algorithms. 1725-1729. Paper presented at Proceedings of the 1994 Nuclear Science Symposium and Medical Imaging Conference. Part 1 (of 4), Norfolk, VA, USA, .