A system calibration and fast iterative reconstruction method for next-generation SPECT imagers

Brian W. Miller, Roel Van Holen, Harrison H Barrett, Lars R Furenlid

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

3 Citations (Scopus)

Abstract

Recently, high-resolution gamma cameras have been developed with detectors containing > 10 5-10 6 elements. SPECT imagers based on these detectors usually also have a large number of voxel bins and therefore face memory storage issues for the system matrix when performing fast tomographic reconstructions using iterative algorithms. To address these issues, we have developed a method that parameterizes the detector response to a point source and generates the system matrix on the fly during MLEM or OSEM on graphics hardware. The calibration method, interpolation of coefficient data, and reconstruction results are presented in the context of a recently commissioned small-animal SPECT imager, called FastSPECT III.

Original languageEnglish (US)
Title of host publicationIEEE Nuclear Science Symposium Conference Record
Pages3548-3553
Number of pages6
DOIs
StatePublished - 2012
Event2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011 - Valencia, Spain
Duration: Oct 23 2011Oct 29 2011

Other

Other2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011
CountrySpain
CityValencia
Period10/23/1110/29/11

Fingerprint

Single-Photon Emission-Computed Tomography
Calibration
Gamma Cameras
detectors
Diptera
matrices
point sources
interpolation
animals
hardware
cameras
high resolution
coefficients

Keywords

  • calibration
  • graphics processing units
  • high-performance computing
  • image reconstruction
  • OSEM
  • Single-photon emission computed tomography (SPECT)
  • system matrix

ASJC Scopus subject areas

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

Cite this

A system calibration and fast iterative reconstruction method for next-generation SPECT imagers. / Miller, Brian W.; Van Holen, Roel; Barrett, Harrison H; Furenlid, Lars R.

IEEE Nuclear Science Symposium Conference Record. 2012. p. 3548-3553.

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

Miller, BW, Van Holen, R, Barrett, HH & Furenlid, LR 2012, A system calibration and fast iterative reconstruction method for next-generation SPECT imagers. in IEEE Nuclear Science Symposium Conference Record. pp. 3548-3553, 2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011, Valencia, Spain, 10/23/11. https://doi.org/10.1109/NSSMIC.2011.6153666
Miller, Brian W. ; Van Holen, Roel ; Barrett, Harrison H ; Furenlid, Lars R. / A system calibration and fast iterative reconstruction method for next-generation SPECT imagers. IEEE Nuclear Science Symposium Conference Record. 2012. pp. 3548-3553
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