title: [Contrast-enhanced MR cholangiography in percutaneous bile duct drainage].
abstract: OBJECTIVE
  To evaluate MR-cholangiography after instillation of contrast media via indwelling biliary tubes.
  
  
  METHODS
  In 8 patients with stenoses of the central bile ducts, physiological saline solution and diluted contrast media (Gd-DTPA, 5 mmol/l) were consecutively administered via an indwelling biliary tube. MR cholangiograms were obtained before and after saline injection using a HASTE-sequence and after administration of Gd-DTPA using a T1-weighted gradient echo sequence.
  
  
  RESULTS
  Peripheral bile ducts were better visualised in the water-sensitive approach than after Gd-DTPA enhancement. In patients with short-time drainage bile duct definition was poor due to periportal oedema. Visualisation of peripheral bile ducts could be improved by injection of saline solution in these patients. After administration of Gd-DTPA via the biliary tube contrast enhancement of the central bile ducts was achieved in all patients except for one patient on long-term drainage with an indwelling Yamakawa tube.
  
  
  CONCLUSIONS
  T1-weighted visualisation of the central bile ducts can be achieved by means of injection of Gd-DTPA via indwelling biliary tubes.
authors.affiliation: Abteilung Radiologische Diagnostik, Eberhard-Karls-Universität, Tübingen.
authors.forename: C W
authors.initials: CW
authors.lastname: König
authors.forename: S H
authors.initials: SH
authors.lastname: Duda
authors.forename: P
authors.initials: P
authors.lastname: Pereira
authors.forename: R
authors.initials: R
authors.lastname: Viebahn
authors.forename: C D
authors.initials: CD
authors.lastname: Claussen
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001652:Bile Ducts; D002758:Cholangiography; D001651:Cholestasis, Extrahepatic / Q000175:diagnosis* / Q000000981:diagnostic imaging*; D003137:Common Bile Duct Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging*; D003287:Contrast Media; D004322:Drainage; D005069:Evaluation Studies as Topic; D005260:Female; D019786:Gadolinium DTPA; D006500:Hepatic Duct, Common; D006801:Humans; D007089:Image Enhancement; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged
chemical_list: D003287:Contrast Media; D019786:Gadolinium DTPA