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Decay correction methods in dynamic PET studies

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5 Author(s)

In order to reconstruct positron emission tomography (PET) images in quantitative dynamic studies, the data must be corrected for radioactive decay. One of the two commonly used methods ignores physiological processes including blood flow that occur at the same time as radioactive decay; the other makes incorrect use of time-accumulated PET counts. In simulated dynamic PET studies using 11C-acetate and 18F-fluorodeoxyglucose (FDG), these methods are shown to result in biased estimates of the time-activity curve (TAG) and model parameters. New methods described in this article provide significantly improved parameter estimates in dynamic PET studies

Published in:

Nuclear Science, IEEE Transactions on  (Volume:42 ,  Issue: 6 )

Date of Publication:

Dec 1995

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