OLGA‐ and OLGIM‐based staging of gastritis using narrow‐band imaging magnifying endoscopy
- 8 June 2015
- journal article
- Published by Wiley in Digestive Endoscopy
- Vol. 27 (7), 735-742
- https://doi.org/10.1111/den.12483
Abstract
As atrophic gastritis and intestinal metaplasia as a result of Helicobacter pylori are considered risk factors for gastric cancer, it is important to assess their severity. In the West, the operative link for gastritis assessment (OLGA) and operative link for gastric intestinal metaplasia assessment (OLGIM) staging systems based on biopsy have been widely adopted. In Japan, however, narrow-band imaging (NBI)-magnifying endoscopic diagnosis of gastric mucosal inflammation, atrophy, and intestinal metaplasia has been reported to be fairly accurate. Therefore, we investigated the practicality of NBI-magnifying endoscopy (NBI-ME) for gastritis staging.We enrolled 55 patients, in whom NBI-ME was used to score the lesser curvature of the antrum (antrum) and the lesser curvature of the lower body (corpus). The NBI-ME score classification was established from images obtained beforehand, and then biopsy specimens taken from the observed areas were scored according to histological findings. The NBI-ME and histology scores were then compared. Furthermore, we assessed the NBI-ME and histology stages using a combination of scores for the antrum and corpus, and divided the stages into two risk groups: low and high. The degree to which the stage assessed by NBI-ME approximated that assessed by histology was then ascertained.Degree of correspondence between the NBI-ME and histology scores was 69.1% for the antrum and 72.7% for the corpus, and that between the high- and low-risk groups was 89.1%.Staging of gastritis using NBI-ME approximates that based on histology, and would be a practical alternative to the latter.Keywords
This publication has 14 references indexed in Scilit:
- Light Blue Crests (LBCs) and White Opaque Substance (WOS)Published by Springer Science and Business Media LLC ,2013
- Topographic differences in gastric micromucosal patterns observed by magnifying endoscopy with narrow band imagingJournal of Gastroenterology and Hepatology, 2011
- The staging of gastritis with the OLGA system by using intestinal metaplasia as an accurate alternative for atrophic gastritisGastrointestinal Endoscopy, 2010
- OLGA staging for gastritis: A tutorialDigestive and Liver Disease, 2008
- A new method of diagnosing gastric intestinal metaplasia: narrow-band imaging with magnifying endoscopyEndoscopy, 2006
- Magnifying Endoscopy in Gastritis of the CorpusEndoscopy, 2005
- Regular arrangement of collecting venules (RAC): a characteristic endoscopic feature of Helicobacter pylori-negative normal stomach and its relationship with esophago-gastric adenocarcinomaThe Esophagus, 2005
- Staging and grading of chronic gastritisHuman Pathology, 2005
- Comparison Between Magnifying Endoscopy and Histological, Culture and Urease Test Findings from the Gastric Mucosa of the CorpusEndoscopy, 2002
- Helicobacter pyloriInfection and the Development of Gastric CancerNew England Journal of Medicine, 2001