Referenced Items are not available for this document.
PET transmission scanning in the presence of emission activity has been investigated on two scanners with orbiting pin transmission sources. One phantom consisting of varying sized spherical inserts in a uniform background and another containing simulated lungs and spine, a myocardium insert, and uniform background were imaged at various emission activity levels. Insert radioactivity concentration levels varied up to 3.5 μCi/mL. Transmission acquisitions were performed with the phantoms aligned with the emission scan position, and with the phantoms shifted to simulate patient motion between scans. Images were reconstructed with and without compensation for the emission contamination. Qualitative and quantitative evaluation of the resulting image sets was performed. The emission correction resulted in no visible artifacts and ~3% quantitative accuracy
Published in:
Nuclear Science, IEEE Transactions on
(Volume:41
,
Issue:
4
)
Date of Publication: Aug 1994
- Page(s):
- 1538 - 1544
- ISSN :
- 0018-9499
- INSPEC Accession Number:
- 4786764
- Digital Object Identifier :
- 10.1109/23.322945
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 06 August 2002
- Issue Date :
- Aug 1994
- Sponsored by :
- IEEE Nuclear and Plasma Sciences Society
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