ArticleThe Korean journal of internal medicine2026
Clinical feasibility of deep learning-assisted classification of Helicobacter pylori infection in endoscopic imagery: a reader study.
Article in The Korean journal of internal medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
BACKGROUND/
aimsDetecting Helicobacter pylori infection through endoscopic imaging is a preferred method to address the limitations of invasive diagnostics. We have developed a deep learning (DL) model to classify these images based on their H. pylori infection status and to evaluate its potential as a diagnostic aid.
methodsWe retrospectively enrolled H. pylori-positive patients (by rapid urease test and serum IgG) at Asan Medical Center between January 2015 and December 2020, establishing development and test datasets to evaluate model utility. We developed a DL model and assessed its performance at both the image and patient levels using metrics such as accuracy, sensitivity, specificity, and F1-score. Fourteen readers of varying experience levels interpreted the endoscopic images in two apsessions, before and after the integration of the DL model results. The diagnostic accuracy of the readers was analyzed using the McNemar test and generalized estimating equations.
resultsIn the utility test set, the image-level accuracy, sensitivity, specificity, and F1-score of our DL model were 84.2%, 74.4%, 93.9%, and 82.5%, respectively. At the patient level, the corresponding values were 97.0%, 100%, 94.0%, and 97.1%. Endoscopists utilizing the DL model demonstrated significantly improved accuracy in classifying H. pylori infections, with classification rates of 83.2% versus 72.4% (p < 0.001).
conclusionOur DL model shows exceptional predictive capabilities for identifying H. pylori infections in gastroscopy images, suggesting the potential of DL-based tools to enhance clinical decision-making in endoscopy. Future research should focus on multicenter prospective studies to validate these findings.
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