TABLE 2

P Values of Wilcoxon Tests Between Feature Values in Departments A and B and in Departments A and A-S Before and After Harmonization

A vs. BA vs. A-S
FeatureBefore harmonizationAfter harmonizationBefore harmonizationAfter harmonization
Homogeneity<0.0001*0.7592<0.0001*0.9300
Entropy<0.0001*0.7828<0.0001*0.9611
Short-run emphasis<0.0001*0.8930<0.0001*0.7922
Long-run emphasis<0.0001*0.4708<0.0001*0.8491
Low–gray-level zone emphasis0.59610.13190.93970.9650
High–gray-level zone emphasis0.23280.81000.0233*0.8759
SUVmax0.05220.7424<0.0001*1.0000
SUVmean0.40420.84090.99801.0000
SUVpeak0.34070.96660.06140.9766