Objective to compare the diagnostic accuracy of intraductal ultrasonography (IDUS) and endoscopicretrogradecholangiography (ERC) on extrahepatic bile duct stones.
目的比较十二指肠镜下胆管腔内超声(IDUS)和内镜下逆行胆管造影(ERC)诊断肝外胆管结石的作用。
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BACKGROUND AND STUDY AIMS: Diagnostic endoscopicretrogradecholangiography (ERC) is being replaced by endoscopic ultrasonography (EUS) in patients with suspected bile duct stones.