Table 3.

Area under Curve (AUC) Level and Appropriate Cutoff Points in Two ROI Methods in Mass and Non-mass

ROI method		Cutoff point (× 10-3 mm2/s)	AUC	P value
In the whole lesion	Mass	1.45	0.825	0.000
	Non-mass	1.39	0.529	0.796
In the most restricted part of lesion	Mass	1.16	0.886	0.000
	Non-mass	1.23	0.508	0.508