Evaluation of the effect of reconstructed image pixel size on defect detectability in Tl-201 fan-beam SPECT by an observer performance study

G. K. Gregoriou, B. M.W. Tsui, G. T. Gullberg

Research output: Contribution to conferencePaper

Abstract

The effect of reconstruction pixel size in the fanbeam filtered backprojection method in myocardial defect detection is investigated using an observer performance study and receiver operating characteristics (ROC) analysis. From the results, the reconstruction pixel size has indicated a significant effect on the quality of fan-beam SPECT images. Moreover, the results indicate that in order to ensure best image quality the PBWRPS (projection bin width to reconstruction pixel size) ratio should be at least as large as the maximum possible magnification inside the reconstructed image array.

Original languageEnglish (US)
Pages1907-1911
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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    Gregoriou, G. K., Tsui, B. M. W., & Gullberg, G. T. (1995). Evaluation of the effect of reconstructed image pixel size on defect detectability in Tl-201 fan-beam SPECT by an observer performance study. 1907-1911. Paper presented at Proceedings of the 1994 Nuclear Science Symposium and Medical Imaging Conference. Part 1 (of 4), Norfolk, VA, USA, .