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。

Objective to compare the diagnostic accuracy of intraductal ultrasonography (IDUS) and endoscopic retrograde cholangiography (ERC) on extrahepatic bile duct stones.

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超声观察肝外胆管内径、管壁厚度、管腔内透声、肝动脉峰值流速(PS V)、阻力指数(RI)。

Focus on extrahepatic bile duct diameter, wall thickness, lumen transparent sound, hepatic artery peak flow velocity (PSV) and resistance index (RI).

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方法采用超声仪检测3 6例胆囊切除术后患者的肝内外胆管， 测量胆管内径，观察管腔内回声。

Methods The ultrasonic features of 36 cases with biliary duct disease post Cholecystectomy were analysed. The biliary duct diameter and the echo characteristics inside duct were examined.

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