DocumentCode
873492
Title
A Statistical Analysis of Count Normalization Methods Used in Positron-Emission Tomography
Author
Holmes, Timothy J. ; Snyder, Donald L. ; Ficke, David C.
Author_Institution
Institute for Biomedical Computing, Department of Electrical Engineering, and Mallinckrodt Institute of Radiology, Washington University, St. Louis, Missouri 63110
Volume
31
Issue
1
fYear
1984
Firstpage
521
Lastpage
526
Abstract
As part of the Positron-Emission Tomography (PET) [1] reconstruction process, annihilation counts are normalized for photon absorption, detector efficiency and detector-pair duty-cycle. Several normalization methods of time-of-flight and conventional systems are analyzed mathematically for count bias and variance. The results of the study have some implications on hardware and software complexity and on image noise and distortion.
Keywords
Biomedical computing; Biomedical measurements; Detectors; Electromagnetic wave absorption; Image reconstruction; Instruments; Position measurement; Positron emission tomography; Radiology; Statistical analysis;
fLanguage
English
Journal_Title
Nuclear Science, IEEE Transactions on
Publisher
ieee
ISSN
0018-9499
Type
jour
DOI
10.1109/TNS.1984.4333311
Filename
4333311
Link To Document