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Fig. 3 | EJNMMI Research

Fig. 3

From: Combatting the effect of image reconstruction settings on lymphoma [18F]FDG PET metabolic tumor volume assessment using various segmentation methods

Fig. 3

MTV ratio across 9 segmentation methods. MTV ratio calculated by comparing MTVs of EARL2 to those of EARL1, with EARL1 as the denominator for a particular segmentation method: 41M, A50P, L2A, L2B, MV2, MV3, NESTLE, SUV2.5 or SUV4.0. For each segmentation method, 2 boxplots are shown. The light blue boxplot represents data without ComBat harmonization, while the dark blue boxplot is obtained after ComBat harmonization. MTV ratio equal to 1 indicates a perfect alignment between reconstructions. a MTV ratio before and after ComBat using non-transformed distribution (Regular ComBat) b MTV ratio before and after ComBat using log-transformed distribution (Log-transformed ComBat)

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