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Stevenson boek digi

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5. Volume of interest delineation techniques for 18 F-FDG PET-CT scans<br />

normally distributed. Fisher’s exact and Mann-Whitney U test were used to compare<br />

variables. Wilcoxon signed rank and Friedman’s test were used to compare the measurements<br />

between the three scans. Correlation coefficients were calculated, and tested<br />

using Spearman’s test. The level of agreement between VOI techniques was determined<br />

by Bland-Altman analyses. 25 A p-value

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