Extrahepatic biliary diseases: 3D MR cholangiopancreatography compared with endoscopic retrograde cholangiopancreatography

Radiology. 1997 Mar;202(3):663-9. doi: 10.1148/radiology.202.3.9051013.

Abstract

Purpose: To assess the diagnostic value of three-dimensional (3D) magnetic resonance (MR) cholangiopancreatography versus endoscopic retrograde cholangiopancreatography (ERCP) in various pancreaticobiliary diseases.

Materials and methods: Forty-six consecutive adult patients suspected to have extrahepatic biliary disease were examined. Breath-hold 3D steady-state free-precession MR cholangiopancreatography was performed. Correct determination of the level of biliary obstruction (n = 23) and of the cause of lesions (n = 46) was independently assessed with both MR cholangiopancreatography and ERCP by two readers blinded to the diagnosis. Results were compared. The overall diagnostic accuracies of both modalities also were compared.

Results: Level of obstruction was accurate in 91% (21 of 23) with MR cholangiopancreatography and in 83% (19 of 23) with ERCP (P > .05). The sensitivity, specificity, and accuracy in distinguishing malignant from benign lesions were 81%, 92%, and 87%, respectively, for MR cholangiopancreatography and 71%, 92%, and 83%, respectively, for ERCP. However, the differences were not significant (P > .05). The overall diagnostic accuracies of MR cholangiopancreatography and ERCP were 72% and 61% (P > .05), respectively.

Conclusion: 3D MR cholangiopancreatography not only is fast and reliable in evaluating the extrahepatic bile duct, but also offers a diagnostic value equivalent to that of ERCP.

Publication types

  • Comparative Study

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Bile Duct Diseases / diagnosis
  • Bile Duct Diseases / diagnostic imaging
  • Bile Duct Diseases / etiology
  • Bile Duct Neoplasms / diagnosis
  • Bile Duct Neoplasms / diagnostic imaging
  • Bile Ducts, Extrahepatic* / diagnostic imaging
  • Bile Ducts, Extrahepatic* / pathology
  • Cholangiopancreatography, Endoscopic Retrograde*
  • Cholestasis, Extrahepatic / diagnosis
  • Cholestasis, Extrahepatic / diagnostic imaging
  • Cholestasis, Extrahepatic / etiology
  • Female
  • Humans
  • Image Processing, Computer-Assisted*
  • Magnetic Resonance Imaging*
  • Male
  • Middle Aged
  • Observer Variation
  • Pancreas / diagnostic imaging
  • Pancreas / pathology
  • Sensitivity and Specificity