Table 2 Classification of the results of the experienced and inexperienced readers and the software analysis. The agreement of the respective readers’ results and the semi-automated software is presented as the weighted kappa value
Experienced reader | Inexperienced reader | Software analysis | |
|---|---|---|---|
Total patients classified | 200 (100.0%) | 200 (100.0%) | 200 (100.0%) |
BI-RADS 1 classification (%) | 91 (45.5%) | 70 (35.0%) | 127 (63.5%) |
BI-RADS 2 classification (%) | 79 (39.5%) | 56 (28.0%) | 68 (34.0%) |
BI-RADS 3 classification (%) | 27 (13.5%) | 53 (26.5%) | 5 (2.5%) |
BI-RADS 4 classification (%) | 3 (1.5%) | 21 (10.5%) | 0 (0.0%) |
Correct classification (%) | 117 (58.5%) | 84 (42.0%) | |
Classification overestimated (%) | 71 (35.5%) | 112 (56.0%) | |
Classification underestimated (%) | 12 (6.0%) | 4 (2.0%) | |
Weighted kappa | 0.367 | 0.232 |