Table 3.

ROC curve analyses of K ^trans and V _e values for differentiation between the different grades

	Threshold	Sensitivity	Specificity	AUC mm 2 .s −1
Ktrans min−1
LGG vs HGG	0.054	94.1%	93.3%	0.941 × 103
II vs III	0.045	87.5%	86.7%	0.883 × 103
II vs IV	0.064	100%	93.3%	0.993 × 103
Ve
LGG vs HGG	0.296	92.9%	91.7%	0.937 × 103
II vs III	0.296	87.5%	93.3%	0.925 × 103
II vs IV	0.345	88.9%	93.3%	0.948 × 103