Estimating spect count densities, scatter fractions, and statistical noise


Journal Article

To provide a quantitative understanding for the interdependence of radiopharmaceutical uptake, detector efficiency, and reconstruction parameters on SPECT statistical accuracy, a unified approach to estimating %rms noise has been developed. The procedure consists of the following steps: 1) Determine an acceptable geometric model for the organ system including radionuclide concentration Qs. 2) Select desired transverse and axial resolutions. 3) Select an acceptable imaging time Tscan. 4) Compute the total number Nt of expected gamma photons in slice using: Copyright © 1985 by The Institute of Electrical and Electronics Engineers, Inc.

Full Text

Duke Authors

Cited Authors

  • Jaszczak, RJ; Greer, KL; Floyd, CE; Harris, CC; Coleman, RE

Published Date

  • January 1, 1985

Published In

Volume / Issue

  • 32 / 1

Start / End Page

  • 762 - 768

Electronic International Standard Serial Number (EISSN)

  • 1558-1578

International Standard Serial Number (ISSN)

  • 0018-9499

Digital Object Identifier (DOI)

  • 10.1109/TNS.1985.4336938

Citation Source

  • Scopus