title: [Sonographic diagnosis of bile duct calculi. Results of a prospective study of 222 cases of choledocholithiasis].
abstract: To evaluate sonographic accuracy in the diagnosis of choledochal calculi 490 patients with cholestasis were examined prospectively with real-time scanner before ERCP or surgery. Ultrasound detected duct stones in 177 of 222 patients (sensibility 80%) and their absence in 242 of 268 (specificity 90%). Dilated extrahepatic bile ducts were demonstrated via ultrasound in 84% of cases with choledocholithiasis, dilated intrahepatic bile ducts in 57%. Intestinal gas obscuring the distal common duct was the most important factor limiting the ability of ultrasound to detect duct stones.
authors.affiliation: Universitätsklinik für Innere Medizin, Theodor Brugsch, Bereichs Medizin (Charitè) der Humboldt-Universität zu Berlin.
authors.forename: W
authors.initials: W
authors.lastname: Wermke
authors.forename: H J
authors.initials: HJ
authors.lastname: Schulz
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003937:Diagnosis, Differential; D005260:Female; D042882:Gallstones / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D014463:Ultrasonography
vernacular_title: Sonographische Diagnostik von Gallenwegskonkrementen. Ergebnisse einer prospektiven Studie von 222 Fällen mit Choledocholithiasis.