Table 6.

ROC curve showing ADC cut-off for benign and malignant lesions

Area under the curve
Test result Variable(s): ADC
Area	SE	p-value	Asymptotic 95% confidence interval
			Lower bound	Upper bound
0.738	0.081	0.008*	0.579	0.897
ADC cut-off		Sensitivity		Specificity
0.53		1		0.057
0.851		0.933		0.371
1.31		0.733		0.771
2.39		0.067		1

ADC, apparent diffusion coefficient; ROC, receiver operating characteristic;SE, standarad error.