Table 5.

Global cortical diffusion and volumetrics AUC

Measures	HC vs all patients AUC	HC vs tAD AUC	HC vs PCA AUC	tAD vs PCA AUC
FA	0.629	0.625	0.635	0.528
MD	0.830	0.812	0.858	0.646
AngleR	0.902	0.922	0.873	0.559
PerpPD	0.889	0.862	0.961	0.731
ParlPD	0.836	0.777	0.927	0.771
Cortical GM_fr	0.874	0.861	0.911	0.645
Cortical Thickness	0.811	0.781	0.870	0.658
Hipp_fr	0.838	0.856	0.798	0.688

This table resumed the AUC for each measure comparing the groups with each other

AUC area under the curve, HC healthy controls, tAD typical Alzheimer’s disease, PCA posterior cortical atrophy, FA fractional anisotropy, MD mean diffusivity, AngleR angle between the radial minicolumnar direction and the principal diffusion direction, PerpPD the principal diffusion component perpendicular to the radial minicolumnar direction, ParlPD the principal diffusion component parallel with the radial minicolumnar direction, Hipp_fr hippocampal fraction. In bold the highest AUC for each comparison