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Figure 7 | EJNMMI Research

Figure 7

From: Effects of rigid and non-rigid image registration on test-retest variability of quantitative [18F]FDG PET/CT studies

Figure 7

Effects on relative TRT of various quantitative PET measures. Box plots illustrating the effects of (local) rigid and non-rigid registration strategies on the relative test-retest variability (TRT) of SUVmax (a), SUVmean (b), metabolic volume (c) or total lesion glycolysis (TLG, d). These TRT values were obtained using PET, CT or both (CTPET). Reference shows those TRT values that were obtained by delineating VOIs on both scans separately. Values close to zero are better than higher values. The mean is illustrated by a square, outliers by dots, and minimum and maximum values by crosses.

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