Table 3.

Accuracy for multiclass classification (HS vs. svPPA vs bvFTD vs nfvPPA) in Test cohort.

Classifier	PCA features selected	N° of features	Accuracy %
KNN	AngleR whole brain	12	75.75
	AngleR caudalanteriorcingulate left
	AngleR entorhinal left
	AngleR fusiform left
	AngleR parsopercularis left
	AngleR precentral left
	AngleR caudalmiddlefrontal right
	AngleR inferiortemporal right
	AngleR lingual right
	AngleR precentral right
	AngleR rostralmiddlefrontal right
	AngleR temporalpole right

Accuracies for multiclass classification of FTD subtypes.