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Radiology, Vol 148, 621-626, Copyright © 1983 by Radiological Society of North America

ARTICLES

Detection of gastritis by single- and double-contrast radiography

RF Thoeni, HI Goldberg, S Ominsky and JP Cello

Sixty-eight patients with various types of gastritis, 23 patients with normal stomachs, and four patients with other gastric diseases were examined in a prospective study to assess the sensitivity and specificity of single-contrast (SC) and double-contrast (DC) upper gastrointestinal examinations in the evaluation of gastritis. All patients underwent endoscopy with biopsy followed first by DC and then by SC radiography. The respective sensitivities of SC and DC radiography were 58% and 72% for all examinations and 59% and 77% for adequate examinations only. The respective specificities were 59% and 55% based on all examinations. Both methods were slightly more sensitive in the detection of moderate-to-severe disease, with sensitivities of 60% for SC and 74% for DC examinations as compared with sensitivities of 53% for SC and 70% for DC in the detection of mild gastritis. Useful radiographic features included polypoid defects and erosions detected by both methods, abnormal folds and flattened margins detected by the SC technique, and narrowed lumen and crenulated margins detected by the DC technique. In 93% of all cases, the correct diagnosis was based on two or more of these radiographic features. According to this study, the radiographic sensitivity in the detection of gastritis is reliable only in cases of moderate-to-severe disease and only when based on findings of the DC examination. Neither SC nor DC radiography should be used as the primary screening method for patients with suspected gastritis, and the radiographic diagnosis should be restricted to the terms "erosive" or "nonerosive gastritis."


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