title: Accuracy of radiologic and endoscopic diagnosis of duodenal ulcer.
abstract: On the basis of results of barium examination and upper gastrointestinal endoscopy four diagnostic criteria of duodenal ulcer can be formed: 1) radiography reveals an ulcer, 2) endoscopy reveals an ulcer, 3) both radiography and endoscopy reveal an ulcer, and 4) radiography and/or endoscopy reveals an ulcer. In a consecutive series of 156 patients the accuracy of each of the four diagnostic criteria was determined using the findings of an experienced specialist in upper gastrointestinal endoscopy as a reference. The predictive value of a positive diagnosis (PVpos) for the four diagnostic criteria was 0.63, 0.88, 1, and 0.68, respectively, and the predictive value of a negative diagnosis (PVneg) for all four criteria was around 0.90. The selection of diagnostic criteria should therefore depend on the clinical problem.
authors.affiliation: Department of Internal Medicine, Herlev Hospital, University of Copenhagen, Denmark.
authors.forename: T
authors.initials: T
authors.lastname: Gjørup
authors.forename: E
authors.initials: E
authors.lastname: Agner
authors.forename: L
authors.initials: L
authors.lastname: Bording Jensen
authors.forename: K M
authors.initials: KM
authors.lastname: Møllmann
mesh_terms: D000328:Adult; D000368:Aged; D004381:Duodenal Ulcer / Q000175:diagnosis* / Q000000981:diagnostic imaging; D004384:Duodenoscopy; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography