Table 1 Comparison between dynamic contrast enhanced MRI criteria of postoperative changes vs. recurrent breast cancer presented as mass lesions (N = 62)
Characteristic | Postoperative changes (N = 37) | Recurrent breast cancer (N = 25) | P value |
|---|---|---|---|
Mass shape | 0.002 | ||
Irregular | 24 (64.9%) a | 9 (36%) b | |
Rounded | 3 (8.1%) a | 12 (48%) b | |
Oval | 10 (27%) a | 4 (16%) a | |
Mass margin | 0.067 | ||
Speculated | 2 (5.4%) a | 3 (12%) a | |
Smooth | 10 (27%) a | 12 (48%) a | |
Irregular | 25 (67.6%) a | 10 (40%) b | |
T1 SI | 0.004 | ||
Mixed | 13 (35.1%) a | 2 (8%) b | |
Low | 19 (51.4%) a | 23 (92%) b | |
Intermediate | 3 (8.1%) a | 0 (0%) a | |
High | 2 (5.4%) a | 0 (0%) a | |
T2 SI | 0.005 | ||
Mixed | 17 (45.9%) a | 2 (8%) b | |
Low | 8 (21.6%) a | 13 (52%) b | |
Intermediate | 7 (18.9%) a | 7 (28%) a | |
High | 5 (13.5%) a | 3 (12%) a | |
STIR SI | < 0.001 | ||
Mixed | 16 (43.2%) a | 0 (0%) b | |
Low | 7 (18.9%) a | 5 (20%) a | |
High | 14 (37.8%) a | 20 (80%) b | |
Mass enhancement pattern | < 0.001 | ||
No | 1 (2.7%) a | 2 (8%) a | |
Marginal | 21 (56.8%) a | 2 (8%) b | |
Homogeneous | 11 (29.7%) a | 10 (40%) a | |
Heterogeneous | 4 (10.8%) a | 11 (44%) b | |
Dynamic curve | < 0.001 | ||
No | 1 (2.7%) a | 2 (8%) a | |
Progressive | 22 (59.5%) a | 1 (4%) b | |
Plateau | 11 (29.7%) a | 6 (24%) a | |
Washout | 3 (8.1%) a | 16 (64%) b |