Table IV.

Comparison of the area under the ROC curve of the three parameters ASL-rCBF, DSC-rCBF and DSC-rCBV.

Indicators	Cutoff value	Area	Sensitivity (%)	Specificity (%)	Standard error	P-value
ASL-rCBF	2.24	0.836	83.2	77.7	0.057	<0.0001
DSC-rCBF	1.85	0.758	91.3	63.9	0.070	0.002
DSC-rCBV	1.68	0.767	91.3	66.7	0.070	0.001

ROC, receiver operating characteristic; ASL, arterial spin labeling; rCBF, relative cerebral blood flow; DSC, dynamic susceptibility contrast; rCBV, relative cerebral blood volume.