Table 3.

ROC curve analyses of diagnostic performance of various variables and their combinations.

Characteristics	AUC	95%CI	Sensitivity	Specificity	Youden index
CE	0.782	0.643–0.920	0.765	0.786	0.551
MRS	0.881	0.788–0.973	0.882	0.786	0.668
DSC	0.912	0.837–0.988	0.765	0.929	0.694
CE + MRS	0.930	0.867–0.993	0.882	0.857	0.739
CE + DSC	0.936	0.873–0.998	0.863	0.857	0.720
DSC + MRS	0.965	0.924–1.000	0.863	1.000	0.863
CE + MRS + DSC	0.965	0.923–1.000	0.902	1.000	0.902

CE, contrast enhancement pattern of residual cavity wall; MRS, Cho/Cr and Cho/NAA ratios; DSC, dynamic susceptibility contrast perfusion.