Benign Breast Lesions: Minimally Invasive Vacuum-assisted Biopsy with 11-Gauge Needles—Patient Acceptance and Effect on Follow-up Imaging Findings

PURPOSE: To evaluate patient acceptance of stereotactic or ultrasonographically (US) guided directional vacuum-assisted 11-gauge needle biopsy of breast lesions and short- and long-term changes at mammography and US resulting from the procedure. MATERIALS AND METHODS: For 91 benign lesions that had been sampled at either stereotactic or US-guided directional vacuum-assisted breast biopsy performed with 11-gauge needles, clinical, mammographic, and US changes were evaluated 1 week after biopsy; 6-month follow-up findings were available for 74 lesions. The subjective outcome of the procedure and patient satisfaction were assessed on the basis of a patient-completed questionnaire that incorporated a multistage scoring system. Statistical analysis of scores for condition for both biopsy methods was performed with the χ2 test. RESULTS: Adverse events occurred during the procedure in four patients. Clinically visible hematomas were observed at 1-week follow-up in 79% of patients. Densities were observed on mamm...