title: [X-ray computed tomography of extrahepatic cholestasis].
abstract: Findings in a series of 53 examinations performed in patients with extrahepatic cholestasis demonstrated the value of computed tomography exploration to determine mechanisms and etiology of biliary tract affections. Sensitivity of the CT scan for detection of biliary tract dilatations was equivalent to that obtained by ultrasound, and was even higher for certain types of patient (obese, distended, etc.). Results of this study combined with data in the literature enables precise diagnostic criteria to be established when determining etiology of these dilatations, which require investigation by a CT scan when ultrasound imaging proves unsatisfactory.
mesh_terms: D001649:Bile Duct Diseases / Q000000981:diagnostic imaging; D001652:Bile Ducts / Q000473:pathology; D002758:Cholangiography; D001651:Cholestasis, Extrahepatic / Q000000981:diagnostic imaging* / Q000209:etiology; D002908:Chronic Disease; D004108:Dilatation, Pathologic / Q000000981:diagnostic imaging; D006801:Humans; D010190:Pancreatic Neoplasms / Q000000981:diagnostic imaging; D010195:Pancreatitis / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography
vernacular_title: Etude tomodensitométrique des cholostases extra-hépatiques.