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Reliability and accuracy of blue light imaging for staging of intestinal metaplasia in the stomach.
- Source :
-
Scandinavian Journal of Gastroenterology . Nov2019, Vol. 54 Issue 11, p1301-1305. 5p. - Publication Year :
- 2019
-
Abstract
- Background and aims: An endoscopic grading system (EGGIM) using narrow-band-imaging (NBI) has shown to accurately identify patients with extensive gastric intestinal metaplasia (GIM). However, description with alternative systems such as blue-light-imaging (BLI) is limited. The aim of this study is to determine the reliability and accuracy of BLI-bright regarding diagnosis and staging of GIM. Methods: Reliability of WLE (white-light-endoscopy) and BLI among 6 observers was assessed using a standard classification based on endoscopic images. Afterward, 37 patients were submitted to gastroscopy using FujifilmEG-760Z and endoscopists had to determine EGGIM score using BLI-bright and to perform gastric biopsies for operative-link-of-gastric-intestinal-metaplasia (OLGIM) calculation. BLI-bright accuracy was determined by comparing results with prior EGGIM scores with NBI and current OLGIM. Results: Compared with WLE, the interobserver reliability between observers was substantially better with BLI (Weighted Kappa: 0.8 vs 0.41). There was an 84% agreement between BLI and NBI assessing EGGIM intervals (EGGIM 0-4vs5-10). The area under the ROC curve was 0.90 (95%CI: 0.79–1.0) using the cut-off of EGGIM > 4 to determine advanced GIM, with a sensitivity of 100% (95%CI: 88–100%). Discussion: BLI-bright is reliable for the diagnosis of gastric intestinal metaplasia and agrees significantly with NBI evaluation. Preliminary data suggests high sensitivity for identifying patients with increased risk of gastric cancer. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00365521
- Volume :
- 54
- Issue :
- 11
- Database :
- Academic Search Index
- Journal :
- Scandinavian Journal of Gastroenterology
- Publication Type :
- Academic Journal
- Accession number :
- 139899448
- Full Text :
- https://doi.org/10.1080/00365521.2019.1684555