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目的 :利用彩色多普勒显像技术评价肝癌集束电极射频治疗术的早期效果。方法 :采用彩色多普勒血流显像仪对 2 8例肝癌患者 ,集束电极射频治疗术前后 1周肿瘤内血流动力学变化进行观察。结果 :集束电极射频治疗前 2 8例肝癌患者 38个结节中 31个可测及血流信号 ,以动静脉混合血流供血为主 ,治疗后有血流的 31个肿块中 11个血流减少 ,14个完全消失 ,肿瘤内 ～ 级血供及动静脉双重供血明显减少。早期观察认为血流减少或消失与肿块缩小相一致 ,双重供血的大肿块血流减少不及小肿块。结论 :彩色多普勒对肝癌射频治疗前后血流的变化可以给肝癌射频治疗的预后提供重要指标 ,为重复治疗提供依据。
Objective: To evaluate the early effect of radiofrequency ablation of hepatocellular carcinoma by using color Doppler imaging. Methods: Tumor blood flow dynamics in 28 patients with hepatocellular carcinoma (HCC) treated with cluster electrode radiofrequency ablation were observed by color Doppler flow imaging. Results: There were 31 measurable blood flow signals in 38 nodules of 28 patients with liver cancer before radiofrequency ablation. The blood flow was mainly arteriovenous mixed blood flow. After the treatment, 11 blood flow in 31 masses Reduced, 14 completely disappeared, the tumor grade ~ blood supply and arteriovenous double blood supply decreased significantly. Early observation that the blood flow decreased or disappeared consistent with the reduction of the mass, double the blood supply of large blood vessels less than the reduction of small lumps. Conclusion: The change of blood flow before and after radiofrequency ablation of liver cancer by color Doppler can provide an important index for the prognosis of radiofrequency ablation of liver cancer and provide the basis for repeated treatment.