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Attenuation effects in gamma-camera coincidence imaging

Publication ,  Journal Article
Laymon, CM; Turkington, TG; Coleman, RE
Published in: IEEE Transactions on Nuclear Science
December 1, 1998
Published version (DOI)

Images produced by gamma camera coincidence (GCC) techniques have a much lower count-density than those produced by dedicated PET scanners. We examine the effects of attenuation and attenuation correction on GCC images using gamma-camera emission data and PET emission and transmission data from phantom and human studies. The effects studied include contrast, noise, and general image quality. Results show that lung lesion contrast is improved but the signal-to-noise ratio is slightly degraded by the application of attenuation correction. Additionally, the corrected images do not contain the distortions of the unconnected images and they more accurately show the activity distribution of the imaged object. The noise studies suggest that statistically appropriate transmission data for implementing an attenuation correction can be acquired in a small fraction of the time used for an emission scan. © 1998 IEEE.

Duke Scholars

Timothy Garvey Turkington
Author Timothy Garvey Turkington Radiology

Published In

IEEE Transactions on Nuclear Science

DOI

10.1109/23.737673

ISSN

0018-9499

Publication Date

December 1, 1998

Volume

45

Issue

6 PART 2

Start / End Page

3115 / 3121

Related Subject Headings

  • Nuclear & Particles Physics
  • 5106 Nuclear and plasma physics
  • 0903 Biomedical Engineering
  • 0299 Other Physical Sciences
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
 

Citation

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Laymon, C. M., Turkington, T. G., & Coleman, R. E. (1998). Attenuation effects in gamma-camera coincidence imaging. IEEE Transactions on Nuclear Science, 45(6 PART 2), 3115–3121. https://doi.org/10.1109/23.737673
Laymon, C. M., T. G. Turkington, and R. E. Coleman. “Attenuation effects in gamma-camera coincidence imaging.” IEEE Transactions on Nuclear Science 45, no. 6 PART 2 (December 1, 1998): 3115–21. https://doi.org/10.1109/23.737673.
Laymon CM, Turkington TG, Coleman RE. Attenuation effects in gamma-camera coincidence imaging. IEEE Transactions on Nuclear Science. 1998 Dec 1;45(6 PART 2):3115–21.
Laymon, C. M., et al. “Attenuation effects in gamma-camera coincidence imaging.” IEEE Transactions on Nuclear Science, vol. 45, no. 6 PART 2, Dec. 1998, pp. 3115–21. Scopus, doi:10.1109/23.737673.
Laymon CM, Turkington TG, Coleman RE. Attenuation effects in gamma-camera coincidence imaging. IEEE Transactions on Nuclear Science. 1998 Dec 1;45(6 PART 2):3115–3121.

Published In

IEEE Transactions on Nuclear Science

DOI

10.1109/23.737673

ISSN

0018-9499

Publication Date

December 1, 1998

Volume

45

Issue

6 PART 2

Start / End Page

3115 / 3121

Related Subject Headings

  • Nuclear & Particles Physics
  • 5106 Nuclear and plasma physics
  • 0903 Biomedical Engineering
  • 0299 Other Physical Sciences
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics