Can the Radiologist Recognize Helicobacter pylori Gastritis?

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Abstract
To evaluate radiologic findings of Helicobacter pylori (H. pylori) in the upper gastrointestinal (UGI) tract, we retrospectively reviewed consecutive records of 676 symptomatic adults with gastric biopsies (224 positive) and 150 symptomatic adults with rapid urease tests (57 positive). All the UGI series of patients with positive biopsies or urease tests for H. pylori were compared with the UGI series of patients with negative urease tests. UGI examinations were evaluated blindly by two gastrointestinal radiologists without knowledge of clinical findings, original radiologic interpretations, or test results. They agreed that 8 of 18 (44%) UGIs of patients with H. pylori had abnormally increased gastric folds in the fundus, body, or antrum as compared with none of 14 (0%) UGIs of patients without H. pylori (p < 0.01) (P.P.V. = 1.0). Inter-observer agreement was good (K = 0.63). Endoscopy in the eight patients with radiographic evidence of enlarged gastric folds all demonstrated marked abnormalities such as prominent gastric folds, gastric erythema, erosions, or peptic ulcers. Our findings indicate that enlarged gastric folds on the UGI series of a symptomatic adult are very suggestive of H. pylori gastritis.

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