Table 2. Classification results for the four different feature sets (sensitivity/specificity), with 19 features selected.

	A	B	C	D
Adenoma	0.43 / 0.50	0.68 / 0.75	0.65 / 0.65	0.50/ 0.64
Cyst	0.76 / 0.79	0.72 / 0.75	0.93 / 0.90	1.00 / 0.91
Hemangioma	0.77 / 0.75	0.73 / 0.73	0.79 / 0.81	0.75 / 0.82
HCC	0.57 / 0.36	0.73 / 0.58	0.63 / 0.56	0.77 / 0.55
Metastasis	0.41 / 0.51	0.60 / 0.64	0.69 / 0.73	0.66 / 0.67
Overall accuracy	0.58	0.69	0.73	0.71

A) T2-weighted MR features, B) T2-weighted MR features and risk factor features, C) T2-weighted MR and DCE-MR features, D) all features.