MODIFIED POST PROCESSING CORRECTION MATRIX FOR SPECT.

D. J. Macey, G. L. DeNardo, S. J. DeNardo, J. A. Seibert

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

2 Scopus citations

Abstract

A post reconstruction method of attenuation compensation for Single Photon Emission Computed Tomography (SPECT) has been investigated that offers a new approach to the problem of quantitation. A modified correction matrix is generated for attenuation compensation in which the Linear Attenuation Coefficient (LAC) for each pixel is assigned a value depending on the radial distance of the pixel from the true section boundary. Attenuation compensation of transverse section images of small and large volume sources of Tc-99m in phantoms using this modified matrix indicated that a known quantity of radionuclide could be determined to better than 10%. The scatter fraction was estimated as the difference in the corrected section images using a multiplicative matrix generated with a constant LAC for each pixel and the modified matrix proposed in this report.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Pages189-192
Number of pages4
Volume671
StatePublished - 1986

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

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