Fig. 2.
Statistical comparison matrix of standard deviation of cohort-level normalized mean intensity (SD NMIc) values between the intensity standardization methods for the heterogeneous (HET) and homogeneous (HOM) cohorts. Freidman test results are shown adjacent to the cohort titles. Each matrix entry corresponds to a corrected p-value for a standardization method pair resulting from a two-sided Wilcoxon signed-rank test between SD NMIc values for each healthy tissue region of interest. Significant values (p < 0.05) are in bold in the matrix. The HOM cohort results are outlined in orange below the white diagonal entries, whereas the HET cohort results are outlined in purple above the white diagonal entries. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)