title: [Ultrasonics in the diagnosis of choledocholithiasis].
abstract: The value of ultrasound in the diagnosis of choledocholithiasis is controversial, sensitivity figures ranging from 22 to 75%. We correlated the ultrasound study with operative findings in 38 patients. A diagnosis of common bile duct stone was made upon finding an echogenic image with or without acoustic shadow in the common bile duct; no attention was paid to the dilatation of the biliary tree. The sensitivity was 68% and the positive predictive value was 85%. Therefore, our results approach the highest reported figures for the value of this diagnostic technique.
authors.forename: D
authors.initials: D
authors.lastname: Busel
authors.forename: A
authors.initials: A
authors.lastname: Espinoza Ugarte
authors.forename: M
authors.initials: M
authors.lastname: Osorio
authors.forename: A
authors.initials: A
authors.lastname: Baeza
authors.forename: G
authors.initials: G
authors.lastname: Silva
authors.forename: J
authors.initials: J
authors.lastname: Niedmann
authors.forename: F
authors.initials: F
authors.lastname: Muñoz
authors.forename: C
authors.initials: C
authors.lastname: Niedmann
mesh_terms: D005069:Evaluation Studies as Topic; D042882:Gallstones / Q000175:diagnosis*; D006801:Humans; D014463:Ultrasonography
vernacular_title: Ultrasonido en el diagnóstico de la coledocolitiasis.