Table 2.

Performance comparison of models before and after feature selection

	GM				GEM				GEVM
	AUC	ACC	SENS	SPEC	AUC	ACC	SENS	SPEC	AUC	ACC	SENS	SPEC
BF	54	55	52	57	42	54	40	74	56	60	82	30
AF	88	82	80	83	89	84	85	83	94	88	91	86

AUC area under the receiver operating characteristic curve, ACC accuracy, SENS sensitivity, SPEC specificity, GM gray-scale modality, GEM gray-scale and shear wave elastography modality, GEVM gray-scale, shear wave elastography and viscosity modality, BF before selection, AF after selection. The auc, acc, sens and spec are expressed as a percentage