【摘要】 目的探讨开腹肝穿刺法建立兔VX2肝癌模型以及经兔股动脉微导管肝左动脉超选择性插管的可行性及技术特点。方法健康新西兰大白兔40只,开腹以16G腰椎穿刺针将VX2瘤组织块种植到兔肝左内叶。2周后行螺旋CT扫描,然后在兔一侧腹股沟区行股动脉鞘管置入,在DSA引导下应用微导管行腹腔动脉造影,分析兔腹腔动脉主要分支走行及肝脏肿瘤的DSA表现,再行肝左动脉插管及肝癌相关实验研究。结果 经影像学及组织病理学检查证实40只实验兔肝肿瘤种植全部成功;股动脉鞘管置入的成功率为97.5%(39/40)。在此基础上腹腔动脉、胃肝动脉、肝总动脉、肝固有动脉、肝左动脉插管成功率分别为100%(39/39)、100%(39/39)、100%(39/39)、94.9%(37/39)、71.2%(28/39)。每只实验兔的X线透视时间为(6.9±3.0)min。结论开腹直视下经穿刺针瘤组织块注入法是建立兔VX2肝癌模型稳定、可靠的方法。经兔股动脉鞘管置入微导管肝动脉插管技术能方便快捷的实现兔肝左动脉超选择性插管,有效的解决了兔VX2肝癌动脉介入治疗时肝左动脉超选择性插管的技术难题。更多还原

【Abstract】 Objective To establish the implanted VX2 liver tumor model in rabbits and to discuss the feasibility and technical features of superselective left hepatic arterial catheterization by using micro-catheter through the femoral artery catheter sheath.Methods Forty New Zealand white rabbits were inoculated with fragments of VX2 tumor into the medial left lobe of liver by using a 16G lumbar puncture needle through laparotomic route.Two weeks later,all the rabbits were proved to be successfully inoculated with liver neoplasm on CT scanning.Then,the catheter sheath was inserted into one of the femoral arteries,which was followed by celiac artery angiography and left hepatic artery catheterization with a micro-catheter under DSA guidance in order to evaluate the main branches of celiac artery and the imaging manifestations of VX2 liver tumor.After that,some scheduled interventional experiments were carried out.Results Imaging examination and histopathologic study showed that the successful rate of implanted rabbit VX2 liver tumor was 100%(40/40).And the successful rate of the catheter sheath inserted to femoral artery was 97.5%(39/40).The successful rate of celiac artery,gastro-hepatic artery,common hepatic artery,proper hepatic artery and left hepatic artery catheterizations was 100%(39/39),100 %(39/39),100%(39/39),94.9%(37/39)and 71.2%(28/39)respectively.Conclusion To implant tumor tissue mass through laparotomy is a stable and reliable method to establish rabbit VX2 liver tumor model.The insertion of micro-catheter through rabbit femoral catheter sheath approach is a convenient and simple technique to be carried out for the left hepatic artery catheterization and it can efficiently solve the technical difficulties when performing the interventional treatment of the rabbit VX2 hepatic tumor via left hepatic artery approach.更多还原