Table 2:

Diagnostic accuracy of DSC- and DCE-derived parameters in differentiating between grade III and grade IV astrocytomas using hot spot ROIs^{^a}

	AUC	95% CI	Cutoff Value	Sensitivity %	Specificity %	Oligoastrocytomas
Vp_Φ	0.79	0.60–0.97	1.88	86	73	Including
Vp_Φ	0.95	0.89–1	1.88	86	100	Excluding
Vp_SI	0.71	0.49–0.93	4.21	89	73	Including
Vp_SI	0.91	0.81–1	4.21	89	100	Excluding
rCBV	0.73	0.51–0.95	5.04	93	55	Including
rCBV	0.83	0.56–1	5.04	93	86	Excluding
K^trans_Φ	0.75	0.57–0.94	0.023	86	64	Including
K^trans_Φ	0.85	0.66–1	0.024	86	86	Excluding
K^trans_SI	0.70	0.50–0.90	0.056	79	64	Including
K^trans_SI	0.76	0.69–1	0.046	79	71	Excluding

↵a No statistically significant difference (P > .05) was between area under the curve of different parameters.