Purpose: Quantitative measurement of tracer uptake in a tumour can be influenced by a number of factors, including the method of defining regions of interest (ROIs) and the reconstruction parameters used. The main purpose of this study was to determine the effects of different ROI methods on quantitative outcome, using two reconstruction methods and the standard uptake value (SUV) as a simple quantitative measure of FDG uptake. Methods: Four commonly used methods of ROI definition (manual placement, fixed dimensions, threshold based and maximum pixel value) were used to calculate SUV (SUV
Original languageEnglish
Pages (from-to)294-301
Number of pages8
JournalEuropean journal of nuclear medicine and molecular imaging
Volumeepub oct
Issue number3
Publication statusPublished - 2004

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