Table 5. Interobserver Variability for Previous Studies Evaluating the Sonographic BI-RADS Descriptors .

Description & Final Assessment	Our Study κ value	Lazarus et al. (12) κ value	Berg et al. (13) κ value	Park et al. (2) κ value	Lee et al. (10) κ value	Abdullah et al. (4) κ value
Shape	0.45	0.66	0.62	0.42	0.49	0.64
Orientation	0.66	0.61	0.72	0.61	0.56	0.70
Margin	0.33	0.40	0.67	0.32	0.33	0.36
Lesion boundary	0.56	0.69	0.36	0.55	0.59	0.48
Echo pattern	0.41	0.29	0.25	0.36	0.37	0.58
Posterior feature	0.54	0.40	0.38	0.53	0.49	0.47
Final category	0.35	0.28	0.52	0.49	0.53	0.30