Table 2.
The BI-RADS classifications assigned by the radiologist and by the AI-based software, in comparison with the histological classification (reference standard).
| BI-RADS classification | Histological classification | |||
|---|---|---|---|---|
| Benign n (%) | Malignant n (%) | Total n (%) | ||
| Radiologist evaluation | ||||
| Category 2-3 | 114 (98.3) | 2 (1.7) | 116 (100.0) | |
| Category 4A-4B | 205 (80.4) | 50 (19.6) | 255 (100.0) | |
| Category 4C-5 | 14 (7.6) | 170 (92.4) | 184 (100.0) | |
| Software evaluation | ||||
| Category 2-3 | 130 (97.0) | 4 (3.0) | 134 (100.0) | |
| Category 4A-4B | 193 (69.7) | 84 (30.3) | 277 (100.0) | |
| Category 4C-5 | 10 (6.9) | 134 (93.1) | 144 (100.0) | |