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Ann Surg Oncol ; 23(10): 3168-74, 2016 10.
Article in English | MEDLINE | ID: mdl-27469121

ABSTRACT

OBJECTIVES: This study was a multicenter evaluation of the SAVI SCOUT(®) breast localization and surgical guidance system using micro-impulse radar technology for the removal of nonpalpable breast lesions. The study was designed to validate the results of a recent 50-patient pilot study in a larger multi-institution trial. The primary endpoints were the rates of successful reflector placement, localization, and removal. METHODS: This multicenter, prospective trial enrolled patients scheduled to have excisional biopsy or breast-conserving surgery of a nonpalpable breast lesion. From March to November 2015, 154 patients were consented and evaluated by 20 radiologists and 16 surgeons at 11 participating centers. Patients had SCOUT(®) reflectors placed up to 7 days before surgery, and placement was confirmed by mammography or ultrasonography. Implanted reflectors were detected by the SCOUT(®) handpiece and console. Presence of the reflector in the excised surgical specimen was confirmed radiographically, and specimens were sent for routine pathology. RESULTS: SCOUT(®) reflectors were successfully placed in 153 of 154 patients. In one case, the reflector was placed at a distance from the target that required a wire to be placed. All 154 lesions and reflectors were successfully removed during surgery. For 101 patients with a preoperative diagnosis of cancer, 86 (85.1 %) had clear margins, and 17 (16.8 %) patients required margin reexcision. CONCLUSIONS: SCOUT(®) provides a reliable and effective alternative method for the localization and surgical excision of nonpalpable breast lesions using no wires or radioactive materials, with excellent patient, radiologist, and surgeon acceptance.


Subject(s)
Breast Neoplasms/diagnostic imaging , Breast Neoplasms/surgery , Radar , Surgery, Computer-Assisted/methods , Adult , Aged , Aged, 80 and over , Female , Humans , Mammography , Margins of Excision , Middle Aged , Neoplasm, Residual , Palpation , Prospective Studies , Reoperation , Surgery, Computer-Assisted/instrumentation , Ultrasonography, Mammary
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