Differential Diagnosis of Colorectal Polyps with Narrow Band Imaging Colonoscopy without Magnification / 대한소화기학회지
The Korean Journal of Gastroenterology
; : 276-282, 2014.
Article
em En
| WPRIM
| ID: wpr-105914
Biblioteca responsável:
WPRO
ABSTRACT
BACKGROUND/AIMS: Narrow band imaging (NBI) endoscopy can be used for gross differentiation between the types of colonic polyps. This study was conducted as a retrospective study for estimation of the interobserver and intra-observer agreement of the pit pattern of the mucosal surface and the accuracy of histology prediction. METHODS: A total of 159 patients underwent complete colonoscopy and 219 polyps examined by NBI endoscopy without magnification were assessed. Interobserver and intra-observer agreement were calculated by investigators in each group for determination of the surface pattern and prediction of histology based on the modified Kudo's classification using intraclass correlation coefficient. RESULTS: Interobserver agreement for the surface pit pattern and prediction of polyp type was 0.84 and 0.73 in experienced endoscopists, and 0.86 and 0.62 in trainees, respectively. Intra-observer agreement for the surface pit patterns and prediction of polyp type was 0.81, 0.83, 0.85, 0.83, 0.56, 0.84, 0.51, 0.83, and 0.71; and 0.71, 0.70, 0.82, 0.54, 0.72, 0.37, 0.51, 0.34, and 0.30, respectively. The diagnostic accuracy for prediction of polyp type was 69.4% for experienced endoscopists and 72.9% for trainees. CONCLUSIONS: NBI endoscopy without magnification showed fairly good inter and intra-observer agreement for the pit pattern of the mucosal surface and the accuracy of histology prediction; however, it had some limitation for differentiation of colon polyp histologic type. Training and experience with NBI is needed for improvement of accuracy.
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Texto completo:
1
Índice:
WPRIM
Assunto principal:
Carcinoma
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Adenoma
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Pólipos do Colo
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Estudos Retrospectivos
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Colonoscopia
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Neoplasias do Colo
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Diagnóstico Diferencial
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Imagem de Banda Estreita
Tipo de estudo:
Diagnostic_studies
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Observational_studies
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Prognostic_studies
Limite:
Adult
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Aged
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Aged80
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Female
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Humans
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Male
Idioma:
En
Revista:
The Korean Journal of Gastroenterology
Ano de publicação:
2014
Tipo de documento:
Article