Accurate 3D detector response compensation in spect using multigrid iterative reconstruction methods

Research output: Contribution to conferencePaper

Abstract

This paper investigated the use of multigrid iterative reconstruction methods to compensate for 3D collimator-detector response. The methods were evaluated in terms of reduction in processing time and effectiveness in the compensation as compared with using the single grid scheme. The results indicate that the multigrid scheme allows significantly faster rate of resolution recovery as compared to using a single grid for large to medium size objects and for partial resolution recovery for small objects. Small effect was found by changing the grid size at different iteration numbers. However, advantage of the multigrid methods is minimal for complete resolution recovery of small objects where small image grid size and large number of iterations are required.

Original languageEnglish (US)
Pages1151-1155
Number of pages5
StatePublished - Dec 1 1995
Externally publishedYes
EventProceedings of the 1995 IEEE Nuclear Science Symposium and Medical Imaging Conference. Part 1 (of 3) - San Francisco, CA, USA
Duration: Oct 21 1995Oct 28 1995

Other

OtherProceedings of the 1995 IEEE Nuclear Science Symposium and Medical Imaging Conference. Part 1 (of 3)
CitySan Francisco, CA, USA
Period10/21/9510/28/95

ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition
  • Industrial and Manufacturing Engineering

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  • Cite this

    Tsui, B. M. W., Zhao, X. D., & Frey, E. C. (1995). Accurate 3D detector response compensation in spect using multigrid iterative reconstruction methods. 1151-1155. Paper presented at Proceedings of the 1995 IEEE Nuclear Science Symposium and Medical Imaging Conference. Part 1 (of 3), San Francisco, CA, USA, .