Table 5.

ROC analysis of combination methods

	Sensitivity	Specificity	PPV	NPV	Accuracy	Youden's index
B-mode( TI-RADS ≥ 4c)	0.644	0.789	0.826	0.588	0.701	0.433
2D SWE (S-Emean ≥ 23.75 kPa)	0.695	0.763	0.820	0.617	0.722	0.458
3D SWE (3D-T-Emean ≥ 20.75 kPa)	0.542	0.789	0.800	0.526	0.639	0.331
B+2D SWE	0.881	0.684	0.813	0.788	0.804	0.570
B+3D SWE	0.831	0.605	0.766	0.697	0.742	0.436
B+2D+3D SWE I	0.831	0.579	0.754	0.688	0.732	0.410
B+2D+3D SWE II	0.610	0.868	0.878	0.589	0.711	0.478