Purpose: To evaluate the performance of magnetic resonance imaging (MRI) to exclude malignancy in biopsy-proven high-risk breast lesions prior to surgical excision.
Material and methods: Breast MRIs performed after a core needle biopsy (CNB) yielding high-risk pathology were evaluated for the presence of suspicious enhancement. The diagnostic performance of MRI to exclude malignancy was calculated.
Results: The average reader sensitivity, specificity, negative predictive value, positive predictive value and accuracy of MRI were 92%, 51%, 98%, 22% and 56%, respectively.
Conclusion: Lack of enhancement on MRI at the site of a high-risk lesion was useful for excluding malignancy.
Keywords: Breast MRI; Breast cancer; Core needle biopsy; High-risk lesions; Upgrade.
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