Table 4 The mammographic abnormality detected by DM, synthetic 2D + DBT, and DM + DBTby Reader 1, Reader 2 and at double reading
BI-RADS category | DM | Synthetic 2D + DBT | DM + DBT | p* | p↑ | p‡ | |
|---|---|---|---|---|---|---|---|
Reader 1 | Asymmetry | 171 (41.2%) | 72 (17.3%) | 85 (20.5%) | 0.01 | 0.01 | 0.1 |
Architectural distortion | 119 (28.7%) | 207 (49.9%) | 213 (51.3%) | 0.01 | 0.01 | 0.2 | |
Calcification | 60 (14.5%) | 75 (18.1%) | 58 (14.2%) | 0.1 | 0.1 | 0.9 | |
Mass | 71 (17.1%) | 61 (14.7%) | 59 (14.2%) | 0.1 | 0.1 | 0.8 | |
Reader 2 | Asymmetry | 181 (43.6%) | 69 (16.6%) | 91 (21.9%) | 0.01 | 0.01 | 0.4 |
Architectural distortion | 109 (26.3%) | 210 (50.6%) | 207 (49.9%) | 0.01 | 0.01 | 0.2 | |
Calcification | 57 (13.7%) | 79 (19%) | 60 (14.5%) | 0.1 | 0.8 | 0.6 | |
Mass | 68 (16.4%) | 57 (13.7%) | 57 (13.7%) | 0.1 | 0.1 | 0.9 | |
Double reading | Asymmetry | 175 (42.2%) | 60 (14.5%) | 83 (20%) | 0.01 | 0.01 | 0.1 |
Architectural distortion | 115 (27.7%) | 209 (50.4%) | 204 (49.2%) | 0.01 | 0.01 | 0.2 | |
Calcification | 55 (13.3%) | 60 (14.5%) | 66 (15.9%) | 0.1 | 0.1 | 0.7 | |
Mass | 70 (16.9%) | 57 (13.7%) | 62 (14.9%) | 0.1 | 0.1 | 0.7 |