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Comparison of MR Imaging Features between ER Positive and Negative Cancers
| ER positive | ER negative | P value | |
|---|---|---|---|
| MR imaging features | |||
| Tumor size | 1.8 ± 1.3 cm | 3.6 ± 2.0 cm | < 0.00005 |
| Mass-type lesion | 53/53 (100%) | 33/40 (82%) | < 0.005 |
| Non-mass type lesion | 0/53 (0%) | 7/40 (18%) | < 0.005 |
| Rim enhancement | 7/53 (13%) | 9/33 (27%) | 0.15 |
| Lesion multiplicity | 16/53 (30%) | 9/33 (27%) | 0.81 |
| Malignant DCE kinetics | 45/50 (90%) | 31/31 (100%) | 0.15 |
| Detectable choline | 16/30 (53%) | 13/18 (72%) | 0.23 |
