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위식도 역류질환의 내시경 진단에서 관찰자 간 차이

Other Titles
 Interobserver Variation in the Endoscopic Diagnosis of Gastroesophageal Reflux Disease 
 이준행  ;  이종수  ;  이풍렬  ;  전훈재  ;  최명규  ;  박영태  ;  김동기  ;  송기준  ;  이상인 
 Korean Journal of Gastrointestinal Endoscopy (대한소화기내시경학회지), Vol.33(4) : 197-203, 2006 
Journal Title
Korean Journal of Gastrointestinal Endoscopy(대한소화기내시경학회지)
Issue Date
Gastroesophageal reflux disease ; LA classification ; Minimal change
Background/Aims: A diagnosis of gastroesophageal reflux disease (GERD) is based on the typical symptoms, such as acid regurgitation and heartburn. However, there is a very high inter-observer variation in the evaluation of GERD patients.
Methods: The endoscopic images of forty-two cases with reflux symptoms (2 still images and 15-second video images per case) were analyzed by 18 experienced endoscopists and 22 trainees. The findings were classified into the following: (1) 6 groups (modified LA classification: 4 LA groups, minimal, and normal), (2) erosinve and non-erosive, and (3) confluent erosive and others. The level of inter-observer variation is expressed as a kappa value.
Results: The level of inter-observer agreement of the 18 experienced endoscopists for classifying the patients into 6 groups was fairly low (kappa=0.364). However, when the findings were classified into the 2 groups suggested in the Genval workshop (NERD, A, or B versus C or D), the level of inter- observer agreement increased substantially (kappa=0.710). The kappa value of the 22 trainees for classifying the patients into 6 groups was 0.402.
Conclusions: Modified LA classification with minimal change lesions showed a fairly low level of agreement. The problem caused by inter-observer variations decreased significantly when the findings were classified into two groups.
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1. College of Medicine (의과대학) > Dept. of Biomedical Systems Informatics (의생명시스템정보학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Dong Ki(김동기)
Song, Ki Jun(송기준) ORCID logo https://orcid.org/0000-0003-2505-4112
Lee, Sang In(이상인)
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