Table 3.
BI-RADS categories of the 355 breast lesions detected on DBT and DM in relation to the final diagnosis
| DBT | DM | |||||
|---|---|---|---|---|---|---|
| Malignant | Benign | Total | Malignant | Benign | Total | |
| Not seen | 0 | 0 | 0 | 15 (4.2) | 22 (6.2) | 37 (10.4) |
| BI-RADS 0 | 0 | 0 | 0 | 4 (1.1) | 11 (3.1) | 15 (4.2) |
| BI-RADS 1 | 0 | 26 (7.3) | 26 (7.3) | 0 | 0 | 0 |
| BI-RADS 2 | 0 | 96 (27) | 96 (27) | 0 | 0 | 0 |
| BI-RADS 3 | 16 (4.5) | 65 (18.3) | 81 (22.8) | 30 (8.5) | 107 (30.1) | 137 (38.6) |
| BI-RADS 4 a | 16 (4.5) | 6 (1.8) | 22 (6.3) | 66 (18.6) | 67 (18.9) | 133 (37.5) |
| BI-RADS 4 b | 19 (5.4) | 0 | 19 (5.4) | 11 (3.1) | 0 | 11 (3.1) |
| BI-RADS 4 c | 34 (9.6) | 14 (3.9) | 48 (13.5) | 22 (6.2) | 0 | 22 (6.2) |
| BI-RADS 5 | 63 (17.7) | 0 | 63 (17.7) | 0 | 0 | 0 |
| Total | 148 (41.7) | 207 (58.3) | 355 (100) | 148 (41.7) | 207 (58.3) | 355 (100) |
The data are represented as numbers with the corresponding percentages given in parentheses
DBT digital breast tomosynthesis, DM digital mammography, BI-RADS Breast Imaging Reporting and Data System