Gelfand D W, Dale W J, Ott D J, Wu W C, Kerr R M, Munitz H A, Chen Y M
Radiology. 1985 Dec;157(3):577-81. doi: 10.1148/radiology.157.3.4059542.
Potential radiologic findings of duodenitis were investigated in 272 patients, 157 with endoscopically diagnosed duodenitis and 115 endoscopically normal controls. The study assessed the value of four signs: folds more than 4 mm thick, mucosal nodules, bulbar deformity, and erosions. The most sensitive signs were thickened folds (72.0%) and nodularity (48.4%), while demonstration of erosions was the least sensitive (10.8%). Overall sensitivity (77.7%) approximated that for the radiologic diagnosis of peptic ulcer or esophagitis. Radiologic specificity (76.5%) was in the same range.