Table 2 DM and DBT findings
Findings | DM (n = 318) | DBT (n = 355) |
|---|---|---|
Site of lesion | ||
 Right breast | 181 (56.9) | 204 (57.5) |
 Left breast | 122 (38.4) | 136 (38.3) |
 Both breasts | 15 (4.7) | 15 (4.2) |
Type of lesion | ||
 Mass | 148 (46.5) | 281 (79.2) |
 Asymmetry | 111 (34.9) |  |
 Architecture distortion | 26 (8.2) | 15 (4.2) |
 Clusters of micro-calcification with no underlying mass | 18 (5.7) | 7 (2) |
 Dense breast (BIRADS 0) | 15 (4.7) |  |
 Dilated ducts |  | 11 (3.1) |
 Asymmetrical densities |  | 15 (4.2) |
 Overlapped glandular tissue | 21 (6.6) | 26 (7.3) |
Characters of mass | ||
Mass margin | ||
 Obscured on mammography and speculated on tomosynthesis | 70 (47.3) | 111 (39.5) |
 Ill-defined | 56 (37.8) | 44 (15.7) |
 Well-defined | 22 (14.9) | 126 (44.8) |
Mass shape | ||
 Irregular | 67 (45.3) | 130 (46.3) |
 Round | 44 (29.7) | 92 (32.7) |
 Oval | 19 (12.8) | 37 (13.2) |
 Macrolobulated | 18 (12.2) | 22 (7.8) |
ACR BI-RADS density | ||
 A | 15 (4.7) | 15 (4.2) |
 B | 107 (33.7) | 111 (31.3) |
 C | 170 (53.5) | 189 (53.2) |
 D | 26 (8.1) | 40 (11.3) |