title: Preoperative magnetic resonance imaging-guided localization of 131 breast lesions with modified embolization coils.
abstract: OBJECTIVE
  The objectives of this study were to assess practicability, outcome, and possible advantages of magnetic resonance imaging (MRI)-guided localizations with modified embolization coils for exclusively MRI-detected suspicious breast lesions.
  
  
  METHODS
  We performed 131 MRI-guided preoperative localizations in 105 patients with exclusively MRI-detected breast lesions. Contrast-enhanced, T1-weighted, 3-dimensional gradient echo sequences were used for imaging. Breast fixation and needle guidance were achieved by a perforated plate. Lesion localization was performed with a modified embolization coil. The distance between coil and lesion was measured. Results of specimen radiography and histopathology were analyzed.
  
  
  RESULTS
  Thirty-four of 131 lesions (26%) were malignant. Lesion localization and excision was successful in all patients. The mean distance between the coil and the lesion was 0.5 mm (+/-1.7 mm standard deviation).
  
  
  CONCLUSIONS
  Exact MRI-guided preoperative localization of exclusively MRI-detected breast lesions by using a modified embolization coil is feasible with excellent precision. Advantages over wire localization procedures are the possibility of specimen x-ray and the independence from time and place of operation.
authors.affiliation: Department of Diagnostic Radiology, University Hospital Tuebingen, Germany. katja.siegmann@gmx.de
authors.forename: Katja C
authors.initials: KC
authors.lastname: Siegmann
authors.forename: Corinna
authors.initials: C
authors.lastname: Gorriz
authors.forename: Tanja
authors.initials: T
authors.lastname: Xydeas
authors.forename: Ute
authors.initials: U
authors.lastname: Krainick-Strobel
authors.forename: Karl
authors.initials: K
authors.lastname: Sotlar
authors.forename: Claus D
authors.initials: CD
authors.lastname: Claussen
authors.forename: Markus
authors.initials: M
authors.lastname: Müller-Schimpfle
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001943:Breast Neoplasms / Q000175:diagnosis* / Q000601:surgery; D003287:Contrast Media; D004621:Embolization, Therapeutic / Q000295:instrumentation; D005260:Female; D006801:Humans; D007089:Image Enhancement; D008279:Magnetic Resonance Imaging / Q000295:instrumentation*; D008875:Middle Aged
chemical_list: D003287:Contrast Media