Table 3.
MR detected additional malignancy based on modality, mammographic breast density and MR breast parenchymal enhancement.
| Discordant results (%) | True positive (%) | False positive (%) | No additional disease (%) | |
|---|---|---|---|---|
| DM cohort (n = 201) | 48 (23%) | 28 (14%) | 18 (9%) | 155 (77%) |
| DBT cohort (n = 187) | 37 (20%) p = 0.330 |
22 (12%) p = 0.530 |
13 (7%) p = 0.470 |
152 (81%) p = 0.313 |
| Non-dense (n = 195) | 31 (16%) | 19 (10%) | 11(6%) | 165 (85%) |
| Dense (n = 193) | 54 (28%) p = 0.004 |
31 (16%) p = 0.062 |
20 (10%) p = 0.086 |
142 (73%) p = 0.007 |
| Low BPE (n = 275) | 52 (19%) | 32 (12%) | 17 (6%) | 226 (88%) |
| High BPE (n = 113) | 33 (30%) p = 0.020 |
18 (16%) p = 0.250 |
14 (13%) p = 0.040 |
81 (72%) p = 0.020 |
DM: digital mammography.
DBT: digital breast tomosynthesis.
BPE: background parenchymal enhancement.
No additional disease: defined as a negative result by MR.
The p-values of less than 0.05 are marked as bold.