选择性腹腔动脉或肝动脉造影术是目前对原发性肝癌较好的定位诊断方法。近年来,通过造影导管注入栓塞剂作肝动脉栓塞洽疗以替代外科手术肝动脉结扎和局部灌注抗癌药物的疗法也收到一定疗效。由于以往采用的导管形态前端弯度小,超选择成功率较低,为此,我们将原有导管头部形态予以改进,制作成前端为扭曲形态(见图1),使 Selective celiac artery or hepatic arteriography is a better localization diagnosis method for primary liver cancer. In recent years, contrast catheters have been used to inject embolization agents for hepatic artery embolization to replace surgical hepatic artery ligation and local perfusion anticancer drug therapy. Due to the small curvature of the tip of the catheter used in the past, the success rate of over-selection was low. For this reason, we improved the original shape of the catheter head and made it into a distorted shape (see Figure 1).