目的　探讨超声引导下多极射频介入治疗肝癌的临床价值。方法　 1 9例肝癌患者 2 6枚结节在超声引导下进行射频消融治疗 ,采取由深到浅、多点多部位、重叠消融的治疗原则。结果　 1 2个结节 (46 .2 % )缩小 ,肿瘤回声均增强 ;1 6个 (61 .5 % )血流信号减少或消失 ;病检 8例阴性 (8/ 1 2 ) ;1 0例甲胎蛋白下降 (1 0 / 1 3) ;7例 (7/ 1 3)肝功能改善。结论　超声引导下多电极射频治疗肝癌是一种疗效确切、操作简便、损伤小、安全性高的有效方法 Objective To investigate the clinical value of ultrasound-guided multi-pole radiofrequency catheterization in the treatment of liver cancer. Methods Twenty-six nodules from 19 patients with hepatocellular carcinoma underwent radiofrequency catheter ablation under the guidance of ultrasound, and adopted the treatment principle of ablation from deep to superficial, multi-site and multi-site. Results Twenty-two nodules (46.2%) were reduced and the echogenicity of the tumors was enhanced. Sixteen (61.5%) of the nodules reduced or disappeared, eight of them were negative (8/12) and 10 AFP decreased (10/13); 7 cases (7/13) improved liver function. Conclusion Ultrasound-guided multi-electrode radiofrequency ablation of liver cancer is an effective method with definite curative effect, simple operation, less damage and high safety