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目的 :探讨超声引导经皮集束电极射频消融 (RFA)治疗中小肝癌 (直径≤ 5cm)的疗效。方法 :利用RF 2 0 0 0 TM肿癌射频治疗系统 ,在B超引导下对 2 9例中小肝癌患者 34个肿块进行经皮肝穿刺射频热凝冶疗 ,并用B超及CT检查以了解RFA治疗效果 ,随访观察其复发和生存情况。结果 :RFA治疗后 93 3 % (2 8/30 )的肿块血供消失 (另 4个直径≤ 3cm的肿块治疗前即无血供 ) ,且 94 1 % (32 /34)的肿块呈完全凝固性坏死。对有血供的 2个肿块再次进行了RFA治疗。随防 6月～ 3年 ,2 9例中现存活 2 5例 ,半年生存率 1 0 0 %。存活的 2 5例中 ,已有 6例生存半年 ,7例生存 1年 ,7例生存 2年 ,5例生存 3年。结论 :集束电极RFA治疗中小肝癌创伤小 ,安全 ,疗效可靠
Objective: To investigate the effect of ultrasound-guided percutaneous radio-frequency ablation (RFA) in the treatment of small and medium-sized liver cancer (diameter ≤ 5cm). METHODS: RF radiofrequency thermocoagulation was performed on 34 tumors of 29 patients with small and medium-sized liver cancer using RF 2000 TM tumor radiofrequency ablation system under the guidance of B-mode ultrasound and B-ultrasound and CT examination to understand the RFA Treatment effect, follow-up observation of its recurrence and survival. Results: 93 3% (28/30) of the blood supply disappeared after RFA treatment (4 other blood donors ≤ 3 cm before treatment), and 94 1% (32 of 34) showed complete coagulation Necrosis. RFA was once again performed on 2 blood-supplied masses. With anti-June to 3 years, 29 cases survived in 25 cases, half a year survival rate of 100%. Of the 25 surviving cases, 6 have survived for six months, 7 have survived for 1 year, 7 have survived for 2 years and 5 have survived for 3 years. Conclusion: Cluster electrode RFA treatment of small and medium-sized liver cancer trauma, safety, efficacy and reliable