DocumentCode
1144177
Title
Effects of Detector Wobble Motion on Image Noise in Positron Emission Tomography
Author
Palmer, M.R. ; Bergstrom, M. ; Beddoes, M.P. ; Pate, B.D.
Volume
4
Issue
1
fYear
1985
fDate
3/1/1985 12:00:00 AM
Firstpage
58
Lastpage
62
Abstract
The effects of detector wobble motion on image variance is described analytically and verified by simulation studies. Simulation results in the form of variance images are presented for various phantoms, sampled under both uniform and wobble-motion conditions. It is shown that under most measurement conditions in a typical PET study, the image precision is degraded due to the nonuniform projection variance introduced by the wobble motion. Using the wobble parameters of the UBC-TRIUMF development of PETT VI, the rms noise is found to be increased by 9 percent due to wobbling.
Keywords
Analysis of variance; Analytical models; Detectors; Image analysis; Image motion analysis; Imaging phantoms; Motion analysis; Motion detection; Motion measurement; Positron emission tomography;
fLanguage
English
Journal_Title
Medical Imaging, IEEE Transactions on
Publisher
ieee
ISSN
0278-0062
Type
jour
DOI
10.1109/TMI.1985.4307694
Filename
4307694
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