title: Encircling guidewire facilitates complete excision of image-localized breast lesions.
abstract: BACKGROUND
  An innovative encircling guidewire defines three sides of a target lesion with a single puncture to achieve negative margins.
  
  
  METHODS
  Twenty-five patients requiring image-guided surgery were localized with an encircling guidewire. Although the deployed wire is circular, it is straight when placed, using a straight outer needle. After image-guided placement of the wire around the lesion, all patients underwent standard surgical excision. Each patient was categorized by proper localization of the target lesion, presence of negative margins, closest margin, and need for reexcision.
  
  
  RESULTS
  The circlewire wire identified the target lesion in all cases. There were no complications relative to either version of the leading tip on the guidewire. Negative margins were achieved in all pure invasive ductal carcinomas. Positive margins were found in all 3 patients with extensive noncalcified in-situ disease and 1 patient with multifocal invasive lobular carcinoma.
  
  
  CONCLUSIONS
  An innovative encircling localizing guidewire device gives the surgeon a new option to completely remove a nonpalpable breast lesion.
authors.affiliation: Department of Surgery, University of Washington, Seattle, WA, USA. breastcare@aol.com
authors.forename: Cary S
authors.initials: CS
authors.lastname: Kaufman
authors.forename: Leslie
authors.initials: L
authors.lastname: Jacobson
authors.forename: Barbara
authors.initials: B
authors.lastname: Bachman
authors.forename: Lauren B
authors.initials: LB
authors.lastname: Kaufman
mesh_terms: D001943:Breast Neoplasms / Q000000981:diagnostic imaging / Q000601:surgery*; D005260:Female; D006801:Humans; D018084:Ultrasonography, Interventional / Q000295:instrumentation / Q000379:methods