Table 5. Areas under the ROC curve (AUC) for each class including the optimal cut-off value and the corresponding true positive rate (TPR), false positive rate (FPR) and false negative rate (FNR).

	AUC	Optimal cut-off value	TPR	FPR	FNR
Adenoma	0.96	0.28	0.88	0.08	0.12
Cyst	1.00	0.43	0.97	0.01	0.03
Hemangioma	0.93	0.26	0.89	0.13	0.11
HCC	0.91	0.33	0.83	0.11	0.17
Metastasis	0.88	0.26	0.81	0.24	0.19