title: Preoperative computed tomography-guided percutaneous hookwire localization of metallic marker clips in the breast with a radial approach: initial experience.
abstract: BACKGROUND
  Hookwire localization is the current standard technique for radiological marking of nonpalpable breast lesions. Stereotactic directional vacuum-assisted breast biopsy (SVAB) is of sufficient sensitivity and specificity to replace surgical biopsy. Wire localization for metallic marker clips placed after SVAB is needed.
  
  
  OBJECTIVE
  To describe a method for performing computed tomography (CT)-guided hookwire localization using a radial approach for metallic marker clips placed percutaneously after SVAB.
  
  
  METHODS
  Nineteen women scheduled for SVAB with marker-clip placement, CT-guided wire localization of marker clips, and, eventually, surgical excision were prospectively entered into the study. CT-guided wire localization was performed with a radial approach, followed by placement of a localizing marker-clip surgical excision. Feasibility and reliability of the procedure and the incidence of complications were examined.
  
  
  RESULTS
  CT-guided wire localization surgical excision was successfully performed in all 19 women without any complications. The mean total procedure time was 15 min. The median distance on CT image from marker clip to hookwire was 2 mm (range 0-3 mm).
  
  
  CONCLUSIONS
  CT-guided preoperative hookwire localization with a radial approach for marker clips after SVAB is technically feasible.
authors.affiliation: Department of Diagnostic Radiology, Shizuoka Cancer Center Hospital, Naga-izumi, Shizuoka, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Uematsu
authors.forename: M
authors.initials: M
authors.lastname: Kasami
authors.forename: Y
authors.initials: Y
authors.lastname: Uchida
authors.forename: J
authors.initials: J
authors.lastname: Sanuki
authors.forename: K
authors.initials: K
authors.lastname: Kimura
authors.forename: K
authors.initials: K
authors.lastname: Tanaka
authors.forename: K
authors.initials: K
authors.lastname: Takahashi
mesh_terms: D000328:Adult; D001706:Biopsy / Q000379:methods*; D005260:Female; D006801:Humans; D008327:Mammography / Q000379:methods*; D008875:Middle Aged; D014057:Tomography, X-Ray Computed