Accuracy of ultrasound-guided breast-conserving surgery in the determination of adequate surgical margins

One promising method for obtaining clear surgical margins during breast-conserving surgery (BCS) is the intraoperative use of ultrasonography. The goal of this study was to assess the size of the ultrasound-measured margin associated with an adequate surgical margin. The study was designed as a prospective cohort study. Patients with primary invasive breast cancer undergoing BCS were included. The ultrasound-measured surgical margins were compared with the pathological margins and tumor and patient characteristics. 147 patients were eligible for analysis. 21 (14.3%) patients had close or positive resection margi…