Interobserver Variability and Accuracy of High-Definition Endoscopic Diagnosis for Gastric Intestinal Metaplasia among Experienced and Inexperienced Endoscopists
- Title
- Interobserver Variability and Accuracy of High-Definition Endoscopic Diagnosis for Gastric Intestinal Metaplasia among Experienced and Inexperienced Endoscopists
- Author
- 은창수
- Keywords
- Gastric Mucosa; Metaplasia; Gastroscopy; Observer Variation; Sensitivity; Specificity
- Issue Date
- 2013-05
- Publisher
- KOREAN ACAD MEDICAL SCIENCES
- Citation
- JOURNAL OF KOREAN MEDICAL SCIENCE; MAY 2013, 28, 5, p744-p749
- Abstract
- Accurate diagnosis of gastric intestinal metaplasia is important; however, conventional endoscopy is known to be an unreliable modality for diagnosing gastric intestinal metaplasia (IM). The aims of the study were to evaluate the interobserver variation in diagnosing IM by high-definition (HD) endoscopy and the diagnostic accuracy of this modality for IM among experienced and inexperienced endoscopists. Selected 50 cases, taken with HD endoscopy, were sent for a diagnostic inquiry of gastric IM through visual inspection to five experienced and five inexperienced endoscopists. The interobserver agreement between endoscopists was evaluated to verify the diagnostic reliability of HD endoscopy in diagnosing IM, and the diagnostic accuracy, sensitivity, and specificity were evaluated for validity of HD endoscopy in diagnosing IM. Interobserver agreement among the experienced endoscopists was "poor" (kappa = 0.38) and it was also "poor'' (kappa = 0.33) among the inexperienced endoscopists. The diagnostic accuracy of the experienced endoscopists was superior to that of the inexperienced endoscopists (P = 0.003). Since diagnosis through visual inspection is unreliable in the diagnosis of IM, all suspicious areas for gastric IM should be considered to be biopsied. Furthermore, endoscopic experience and education are needed to raise the diagnostic accuracy of gastric IM.
- URI
- https://synapse.koreamed.org/DOIx.php?id=10.3346/jkms.2013.28.5.744http://hdl.handle.net/20.500.11754/44487
- ISSN
- 1011-8934
- DOI
- 10.3346/jkms.2013.28.5.744
- Appears in Collections:
- COLLEGE OF MEDICINE[S](의과대학) > MEDICINE(의학과) > Articles
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