Quantitative dynamic contrast-enhanced MR imaging can be used to predict the pathologic stages of oral tongue squamous cell carcinoma

Table 4 ROC analyses of qDCE-MRI parameters for discrimination between stage I–II and stage III–IV lesions

Parameters	AUC (95% CI)	Sensitivity(95% CI)	Specificity(95% CI)	PPV (95% CI)	NPV (95% CI)	Accuracy (95% CI)
K^trans	0.703 (0.560–0.846)	0.867 (0.584–0.977)	0.583 (0.408–0.740)	0.464 (0.280–0.658)	0.913 (0.705–0.985)	0.647 (0.710–0.764)
K_ep	0.731 (0.590–0.873)	0.643 (0.441–0.807)	0.826 (0.605–0.943)	0.818 (0.590–0.940)	0.655 (0.457–0.814)	0.725 (0.583–0.841)
V_p	0.710 (0.562–0.857)	0.892 (0.706–0.972)	0.522 (0.311–0.726)	0.694 (0.517–0.831)	0.800 (0.514–0.947)	0.725 (0.583–0.841)

AUC area under the curve, CI confidential interval, PPV positive predictive value, NPV negative predictive value

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