title: [CT-guided punctures: fine-needle biopsy vs. automated co-axial cutting biopsy].
abstract: OBJECTIVE
  Comparison between fine needle aspiration (FNAB) and automated coaxial core biopsy (ACCB) of CT-guided thoracal and abdominal biopsies.
  
  
  METHODS
  98 patients had CT-guided biopsies of the liver (n = 26), lung (n = 36), pancreas (n = 8), presacral space (n = 16), retroperitoneum (n = 8), groin (n = 1) and mediastinum (n = 3). In 50 patients fine needle aspiration, in 48 patients ACCB was performed. Nine physicians, two of them with advanced experience, performed the procedure.
  
  
  RESULTS
  Histologically satisfying material was achieved in 76% of the biopsies with FNAB, in 100% with ACCB. The sensitivity within the FNAB group was 59.6%, within ACCB group 97.5%. Sensitivity for the whole group was 76.7%. In pulmonary lesions the sensitivity was increased to 100% by using the ACCB method in comparison to FNAB (58%), in liver lesions from 75% (FNAB) to 92% (ACCB). 19 of 20 false negative specimens were obtained with FNAB. The less experienced physicians had a false negative rate of 43% with FNA biopsies, but only 2.2% with ACCB.
  
  
  CONCLUSIONS
  In pulmonary and abdominal lesions ACCB is a procedure with rare complications and low invasivity, which is not dependent on the performing person. ACCB has a high diagnostic accuracy and should replace FNAB.
authors.affiliation: Radiologische Klinik, Städtische Kliniken Dortmund.
authors.forename: H J
authors.initials: HJ
authors.lastname: Skamel
authors.forename: A
authors.initials: A
authors.lastname: Hanusch
authors.forename: K
authors.initials: K
authors.lastname: Mathias
mesh_terms: D001331:Automation; D001706:Biopsy / Q000379:methods*; D001707:Biopsy, Needle; D005260:Female; D006801:Humans; D008297:Male; D009339:Needles; D009369:Neoplasms / Q000175:diagnosis* / Q000473:pathology; D014057:Tomography, X-Ray Computed