title: [Unenhanced helical computed tomography in the diagnosis of choledocholithiasis].
abstract: OBJECTIVE
  The aim of this study is to investigate the diagnostic value of unenhanced helical computed tomography in choledocholithiasis.
  
  
  METHODS
  Unenhanced helical computed tomography was performed in 37 patients with findings of obstructive jaundice and suspicion of choledocholithiasis. Results were classified as choledocholithiasis and others. In 35 patients the results were confirmed by endoscopic retrograde cholangiopancreatography, and in 2 by surgery.
  
  
  RESULTS
  Choledocholithiasis was detected by unenhanced helical computed tomography in 16 patients. In 13 patients, choledocholithiasis was proven by endoscopic retrograde cholangiopancreatography and in one patient by surgery. Unenhanced helical CT had 93.3% sensitivity and 90.9% specificity in the diagnosis of choledocholithiasis.
  
  
  CONCLUSIONS
  Unenhanced helical computed tomography may be used as a noninvasive, reliable, and rapid alternative diagnostic method in the diagnosis of choledocholithiasis.
authors.affiliation: Ondokuz Mayis Universitesi Tip Fakültesi, Radyoloji Anabilim Dali, Samsun.
authors.forename: Irade
authors.initials: I
authors.lastname: Duşdurova
authors.forename: Murat
authors.initials: M
authors.lastname: Danaci
authors.forename: Ahmet
authors.initials: A
authors.lastname: Bektaş
authors.forename: Ahmet
authors.initials: A
authors.lastname: Oztürk
authors.forename: Umit
authors.initials: U
authors.lastname: Belet
authors.forename: Türkay
authors.initials: T
authors.lastname: Yalin
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002760:Cholangiopancreatography, Endoscopic Retrograde; D042883:Choledocholithiasis / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed / Q000379:methods