Imaging-Concordant Benign MRI-Guided Vacuum-Assisted Breast Biopsy May Not Warrant MRI Follow-Up

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Abstract
OBJECTIVE. The follow-up of breast lesions with imaging-concordant benign histopathology results on MRI-guided vacuum-assisted biopsy (VAB) is not currently standardized. We determined the false omission rate of breast MRI–guided VAB with benign histopathology (negative results) to assess whether breast MRI follow-up is needed. MATERIALS AND METHODS. The medical records of patients who underwent 9-gauge breast MRI–guided VAB during 2007–2012 were reviewed retrospectively. Lesions with imaging-concordant benign histopathology results from MRI-guided VAB and surgery or 2 years or more of imaging follow-up were included. The false omission rate (1 – negative predictive value; [number of false-negative results / number of negative results]) of MRI-guided VAB was calculated. RESULTS. One hundred sixty-nine lesions were included, and 135 had only imaging follow-up (mammography follow-up: range, 17–107 months [median, 52 months]; MRI follow-up: range, 5–95 months [median, 35 months]). Of the 135 lesions with onl...

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