Fig 3. Region-of-interest analysis of MD values in the cerebral peduncle for lesion sides and contralateral sides. The Wilcoxon signed rank test was used for analysis of the differences. A, In patients with CSDH, there is no significant difference in MD values between the affected sides and the contralateral sides (P > .5). B, In healthy volunteers, there is no significant difference between bilateral sides (P > .5). Lt. indicates left; Rt, right.