Adaptive angular sampling approach for emission tomography

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents an adaptive angular sampling approach developed for SPECT systems that require the rotation of the detection system to obtain an adequate angular sampling. The basic idea of the approach is to assign different imaging times across possible sampling angles, based on the efficiency of the camera(s) at each possible angle for collecting imaging information. In this study, we used the resolution-variance tradeoffs and bias-variance tradeoffs as performance indices for guiding the adaptive angular sampling strategy, and applied a highly efficient computation scheme, based on the non-uniform object-space pixilation methods, for deriving the optimum time distribution in near real-time. This approach allows an optimum efficiency for collecting imaging information and therefore offers an improved image quality.

Original languageEnglish (US)
Title of host publicationIEEE Nuclear Science Symposuim and Medical Imaging Conference, NSS/MIC 2010
Pages2903-2909
Number of pages7
DOIs
StatePublished - Dec 1 2010
Event2010 IEEE Nuclear Science Symposium, Medical Imaging Conference, NSS/MIC 2010 and 17th International Workshop on Room-Temperature Semiconductor X-ray and Gamma-ray Detectors, RTSD 2010 - Knoxville, TN, United States
Duration: Oct 30 2010Nov 6 2010

Publication series

NameIEEE Nuclear Science Symposium Conference Record
ISSN (Print)1095-7863

Other

Other2010 IEEE Nuclear Science Symposium, Medical Imaging Conference, NSS/MIC 2010 and 17th International Workshop on Room-Temperature Semiconductor X-ray and Gamma-ray Detectors, RTSD 2010
CountryUnited States
CityKnoxville, TN
Period10/30/1011/6/10

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ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Radiology Nuclear Medicine and imaging

Cite this

Li, N., & Meng, L. J. (2010). Adaptive angular sampling approach for emission tomography. In IEEE Nuclear Science Symposuim and Medical Imaging Conference, NSS/MIC 2010 (pp. 2903-2909). [5874327] (IEEE Nuclear Science Symposium Conference Record). https://doi.org/10.1109/NSSMIC.2010.5874327