Abstract
Background: Vacuum-assisted breast biopsy system (VAB) is an alternative modality to core needle biopsy for the diagnosis of breast lesions. Material and methods: Fifty-four patients who underwent ultrasound-guided VAB procedures were analyzed. Patients were categorized into two groups: The first 20 consecutive patients as group A and the next 34 consecutive patients as group B. Results: Fifty-two patients underwent excision, and two underwent biopsy only. Moving average curves showed a plateau phase for performing VAB procedures after the 20th patient. Total operation times of group B were significantly shorter than those of group A (p < 0.001). Complication rates in group B tended to be lower, and VAB probe position of group B tended to be better than that of group A, but these differences were not statistically significant. Conclusion: Our data suggest the existence of a learning curve for ultrasound-guided VAB procedures. VAB procedures can be performed safely, even during the early learning period.
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