The radiologic detection of duodenal ulcers: effects of examiner variability, ulcer size and location, and technique.
Study of 91 endoscopically verified duodenal ulcers compared the effects of examiner variability, ulcer size and location, and radiographic technique on ulcer detection. Radiologic sensitivity of 61.5% was found for the entire group of 91 ulcers. Examiner variability was the strongest determinant of success; sensitivities for individual examiners ranged from 44.4% to 80%. Ulcer size was a second factor in radiologic detectability; ulcers 5 mm or larger were detected at a higher rate (80.0%) than those less than 5 mm (64.5%). Sensitivities of 65.9% and 57.4% were recorded for single- and double-contrast examinations, respectively, a statistically insignificant difference.
D000328:Adult; D000368:Aged; D004381:Duodenal Ulcer / Q000000981:diagnostic imaging* / Q000473:pathology; D005260:Female; D006801:Humans; D008297:Male; D008722:Methods; D008875:Middle Aged; D011859:Radiography