Use of DTT parameters for differential diagnosis.

Mean diffusivity (MD, 10?−3 mmˆ2/s) and apparent area coefficient (AAC) differentiating PSP from IPD. CG – cingulum, CST – corticospinal tract, CC – corpus callosum, PSP – progressive supranuclear palsy, AUC – area under curve, ROC – receiver operating characteristic analysis. *Significant differences between PSP and IPD, P<0,05, using binary logistic regression, adjusted for age and sex. There were no age/sex differences between IPD and PSP groups together with chosen MR parameters.