Evaluation of Intraductal Ultrasonography Endoscopic Brush Cytology and K-ras P53 Gene Mutation in the Early Diagnosis of Malignant Bile Duct Stricture

摘要

Background:In qualitative diagnosis of bile duct stenosis, single diagnostic measure is difficult to make a correct diagnosis, to combine several diagnostic techniques may be helpful to make an accurate diagnosis. The aim of this study was to evaluate the value of intraductal ultrasonography (IDUS), endoscopic brush cytology and K-ras, P53 gene mutation in the early diagnosis of malignant biliary stricture.