Table 3.

Voxel level statistical comparing RSI-MRI cellularity index between prostate cancer Gleason categories versus normal tissues and between pathologic grades. Post hoc multiple comparison t tests were implemented in comparing difference in detection of prostate cancer aggressiveness [low-grade prostate cancer (primary Gleason 3) and high-grade prostate cancer (primary Gleason ≥4)] versus benign tissue and between tumor grades (low-grade prostate cancer versus high-grade prostate cancer)

GroupMean difference (SE)P
Pathology vs. normal
Low grade vs. normal1.153 (0.100)<0.001
High grade vs. normal1.516 (0.063)<0.001
Between pathologic grades
High grade vs. low grade0.364 (0.113)0.003