目的探讨实时虚拟导航系统引导消融治疗肝癌的临床应用。方法对2个等回声和2个靠近膈肌受肺气干扰而超声显示不佳的肝细胞性肝癌病灶,在实时虚拟导航系统引导下经皮穿刺无水酒精消融,观察局部消融效果。结果治疗后经对比增强CT或MRI判定,4个病灶2个完全消融,2个有局部残留。未发生相关并发症。结论在肝癌经皮消融治疗中,对常规超声显示不佳的病灶,实时虚拟导航系统有助于正确引导穿刺和监控治疗。 Objective To investigate the clinical application of real-time virtual navigation system guided ablation in the treatment of liver cancer. Methods Two equal echoes and two hepatocellular carcinoma patients with poor ultrasound showed interference by pulmonary gas near the diaphragm were percutaneous punctured with absolute alcohol under the guidance of a real-time virtual navigation system to observe the local ablation effect. Results After treatment contrast enhanced CT or MRI, 4 lesions were completely ablated 2, 2 with local residual. No related complications occurred. Conclusion In the percutaneous ablation of liver cancer, the real-time virtual navigation system can help to guide the puncture and monitor the treatment correctly.