Pilot Study of a New Nonradioactive Surgical Guidance Technology for Locating Nonpalpable Breast Lesions

被引:75
作者
Cox, Charles E. [1 ]
Garcia-Henriquez, Norbert [1 ]
Glancy, M. Jordan [1 ]
Whitworth, Pat [2 ]
Cox, John M. [3 ]
Themar-Geck, Melissa [4 ]
Prati, Ronald [4 ]
Jung, Michelle [1 ]
Russell, Scott [1 ]
Appleton, Kristie [2 ]
King, Jeff [1 ]
Shivers, Steven C. [1 ]
机构
[1] Univ S Florida, Breast Hlth Program, USF Morsani Coll Med, Tampa, FL USA
[2] Nashville Breast Ctr, Nashville, TN USA
[3] Tampa Bay Breast Care Specialists, Tampa, FL USA
[4] Florida Hosp, Breast Care Ctr, Tampa, FL USA
关键词
RADIOACTIVE SEED LOCALIZATION; RANDOMIZED PROSPECTIVE EVALUATION; WIRE LOCALIZATION; CONSERVING SURGERY; INTRAOPERATIVE ULTRASOUND; GUIDED LUMPECTOMY; POSITIVE MARGINS; CANCER; BIOPSY; TRIAL;
D O I
10.1245/s10434-015-5079-x
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
The current technique for locating nonpalpable breast lesions is wire localization (WL). Radioactive seed localization and intraoperative ultrasound were developed to improve difficulties with WL. The SAVI SCOUT surgical guidance system was developed to improve these methods. The SCOUT system is a non-radioactive, FDA-cleared medical device that uses electromagnetic wave technology to provide real-time guidance during excisional breast procedures. Consenting patients underwent localization and excision using an implantable electromagnetic wave reflective device (reflector) and a detector handpiece with a console. Using image guidance, the reflector was placed up to 7 days before the surgical procedure. The primary end points of the study were successful reflector placement, localization, and retrieval. The secondary end points were percentage of clear margins, reexcision rates, days of placement before excision, and physician comparison with WL. This study analyzed 50 patients. The reflectors were placed under mammographic guidance (n = 18, 36 %) or ultrasound guidance (n = 32, 64 %). Of the 50 patients, 10 (20 %) underwent excisional biopsy and 40 (80 %) had a lumpectomy. The lesion and reflector were successfully removed in all 50 patients, and no adverse events occurred. Of the 41 patients who had in situ and/or invasive carcinoma identified, 38 (93 %) had clear margins and 3 (7 %) were recommended for reexcision. These data suggest that the SCOUT system is safe and effective for guiding the excision of nonpalpable breast lesions and a viable alternative to standard localization options. A larger prospective, multi-institution trial of SCOUT currently is underway to validate these findings.
引用
收藏
页码:1824 / 1830
页数:7
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