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Miniprobe Endoscopic Ultrasonography Has Limitations in Determining the T Stage in Early Colorectal Cancer
Gut and Liver ; : 163-168, 2013.
Article de En | WPRIM | ID: wpr-197302
Bibliothèque responsable: WPRO
ABSTRACT
BACKGROUND/AIMS: Mini-probe endoscopic ultrasonography (mEUS) is a useful diagnostic tool for accurate assessment of tumor invasion. The aim of this study was to estimate the accuracy of mEUS in patients with early colorectal cancer (ECC). METHODS: Ninety lesions of ECC underwent mEUS for pre-treatment staging. We divided the lesions into either the mucosal group or the submucosal group according to the mEUS findings. The histological results of the specimens were compared with the mEUS findings. RESULTS: The overall accuracy for assessing the depth of tumor invasion (T stage) was 84.4% (76/90). The accuracy of mEUS was significantly lower for submucosal lesions compared to mucosal lesions (p=0.003) and it was lower for large tumors (> or =2 cm) (p=0.034). The odds ratios of large tumors and submucosal tumors affecting the accuracy of T staging were 3.46 (95% confidence interval [CI], 1.05 to 11.39) and 6.25 (95% CI, 1.85 to 25.14), respectively. When submucosal tumors were combined with large size, the odds ratio was 14.67 (95% CI, 1.46 to 146.96). CONCLUSIONS: The overall accuracy of T stage determination with mEUS was considerably high in patients with ECC; however, the accuracy decreased when tumor size was >2 cm or the tumor had invaded the submucosal layer.
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Mots clés
Texte intégral: 1 Indice: WPRIM Sujet Principal: Tumeurs colorectales / Odds ratio / Endosonographie Type d'étude: Etiology_studies Limites du sujet: Humans langue: En Texte intégral: Gut and Liver Année: 2013 Type: Article
Texte intégral: 1 Indice: WPRIM Sujet Principal: Tumeurs colorectales / Odds ratio / Endosonographie Type d'étude: Etiology_studies Limites du sujet: Humans langue: En Texte intégral: Gut and Liver Année: 2013 Type: Article