Table V.

Results of the receiver operating characteristic analysis for D_slow and D_fast.

Coefficient	AUC (95% CI)	Optimal cut-off	Sensitivity (%)	Specificity (%)	P-value
Dslow	0.793 (0.655–0.895)	≤0.472×10−3 mm2/sec	53.9	97.3	0.499a
Dfast	0.863 (0.736–0.944)	>9.58×10−3 mm2/sec	69.2	91.9	0.757b
Combined Dslow and Dfast	0.885 (0.763–0.958)	–	100	76.9	0.257c

^aD_slow vs. D_fast

^bD_fast vs. Combined D_slow and D_fast

^cD_slow vs. Combined D_slow and D_fast. AUC, area under the curve; CI, confidence interval; D_slow, slow apparent diffusion coefficient; D_fast, fast apparent diffusion coefficient.