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Comparison of Post-treatment Breast MRI Performance for pCR* in Patients with HER2+ Tumors Treated With and Without Trastuzumab
| Trastuzumab Use** HR+/−Her2+ | Sensitivity | Specificity | NPV | PPV | Accuracy |
|---|---|---|---|---|---|
| Yes | 98/129 (76) | 32/65 (49) | 32/63 (51) | 98/131 (75) | 130/194 (67) |
| No | 39/44 (89) | 3/10 (30) | 3/8 (38) | 39/46 (85) | 42/54 (78) |
| p value | 0.07 | NS | NS | 0.16 | 0.12 |
pCR: resolution of invasive disease and DCIS
Use of trastuzumab unknown in one HR+HER2+ patient
