肝动脉插管在诊断肝脏占位病变和介入治疗中具有重要的作用［ｌ］，可选用的导管有多种，但最常用的导管为向右两弯型（ＲＨ）导管，Ｃｏｂｒａ导管和盘曲导管［２］（以下简称常规导管）。尽管插管的成功率相当高，但是对于从腹主动脉发出后直接上行或呈锐角向右上行走供应肝 Hepatic arterial cannulation plays an important role in the diagnosis of liver space-occupying lesions and interventional treatment [1]. There are many catheters available, but the most commonly used catheters are right-angled RH catheters, Cobra catheters and coils Catheter [2] (hereinafter referred to as conventional catheter). Although the success rate of intubation is quite high, for the supply of liver from the abdominal aorta straight up or acute rightward walk