Table 2 Comparison between DM, synthetic 2D + DBT, and DM + DBT on final BI-RADS assessments by Reader 1, Reader 2 and at double reading
BI-RADS category | DM | Synthetic 2D + DBT | DM + DBT | p* | p↑ | p‡ | |
|---|---|---|---|---|---|---|---|
Reader 1 | BI-RADS 1,2 | 191 (46%) | 273(65.8%) | 271 (65.3%) | 0.03 | 0.03 | 0.9 |
BI-RADS 3 | 150 (36.1%) | 77 (18.6%) | 76 (18.3%) | 0.01 | 0.01 | 0.9 | |
BI-RADS 4,5 | 74 (17.8%) | 65 (15.7%) | 68 (16.4%) | 0.1 | 0.1 | 0.3 | |
PPV of malignancy | 50/74 (67.6%) | 50/65 (76.9%) | 50/68 (73.5%) | 0.08 | 0.09 | 0.1 | |
Reader 2 | BI-RADS 1,2 | 149 (35.9%) | 277 (66.7%) | 266 (64.1%) | 0.01 | 0.02 | 0.4 |
BI-RADS 3 | 189 (45.5%) | 77 (18.6%) | 91 (21.9%) | 0.01 | 0.01 | 0.2 | |
BI-RADS 4,5 | 77 (18.6%) | 61 (14.7%) | 58 (14%) | 0.1 | 0.1 | 0.6 | |
PPV of malignancy | 50/77 (64.9%) | 50/61 (82%) | 50/58 (86.2%) | 0.01 | 0.01 | 0.2 | |
Double reading | BI-RADS 1,2 | 160 (38.6%) | 276 (66.5%) | 272 (65.5%) | 0.01 | 0.02 | 0.5 |
BI-RADS 3 | 185 (44.6%) | 80 (19.3%) | 83 (20%) | 0.01 | 0.01 | 0.5 | |
BI-RADS 4,5 | 70 (16.9%) | 59 (14.2%) | 60 (14.4%) | 0.1 | 0.1 | 0.9 | |
PPV of malignancy | 50/70 (71.4%) | 50/59 (84.7%) | 50/60 (83.3%) | 0.03 | 0.04 | 0.2 |