Magnifying endoscopy with narrow-band imaging may improve diagnostic accuracy of differentiated gastric intraepithelial neoplasia: a feasibility study / 中华医学杂志(英文版)
Chinese Medical Journal
;
(24): 728-732, 2012.
Article
Dans Anglais
| WPRIM
| ID: wpr-262535
ABSTRACT
<p><b>BACKGROUND</b>Magnifying narrow-band imaging has enabled observation of the mucosal and vascular patterns of gastrointestinal lesions. This study investigated the potential value of magnifying endoscopy with narrow-band imaging for the classification of gastric intraepithelial neoplasia.</p><p><b>METHODS</b>Seventy-six patients with gastric intraepithelial neoplasia (82 lesions) at People's Liberation Army General Hospital from December 2009 to November 2010 were analyzed. All patients underwent magnifying endoscopy with narrow-band imaging, and their lesions were differentiated into probable low-grade intraepithelial neoplasia or possible high-grade intraepithelial neoplasia on the basis of the imaging features. Pathologic proof was subsequently obtained by endoscopic submucosal dissection in every case. The validity of magnifying endoscopy with narrow-band imaging was calculated, considering histopathology to be the gold standard.</p><p><b>RESULTS</b>Magnifying endoscopy with narrow-band imaging showed 22 low-grade intraepithelial neoplastic lesions and 60 high-grade intraepithelial neoplastic lesions. Of the 22 low-grade intraepithelial neoplastic lesions, 16 showed the same results on both imaging and pathology. Of the 60 high-grade intraepithelial neoplastic lesions, 53 showed the same results on both imaging and pathology. Thus, the sensitivity of magnifying endoscopy with narrow-band imaging for high-grade intraepithelial neoplasia was 89.83%, which was higher than that for low-grade intraepithelial neoplasia (69.57%). However, the specificity for high-grade intraepithelial neoplasia (69.57%) was lower than that for low-grade intraepithelial neoplasia (89.83%). The overall accuracy of magnifying endoscopy with narrow-band imaging was 84.15%.</p><p><b>CONCLUSIONS</b>Magnifying endoscopy with narrow-band imaging can distinguish between gastric low- and high-grade intraepithelial neoplasia. It may be a convenient and effective method for the classification of gastric intraepithelial neoplasia.</p>
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Tumeurs de l'estomac
/
Épithélioma in situ
/
Diagnostic
/
Endoscopie
/
Méthodes
Type d'étude:
Etude diagnostique
Limites du sujet:
Adulte
/
Adulte très âgé
/
Aged80
/
Femelle
/
Humains
/
Mâle
langue:
Anglais
Texte intégral:
Chinese Medical Journal
Année:
2012
Type:
Article
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