CDFI对集束电极射频治疗肝癌前后肝血流动力学观察

目的 利用彩色多普勒显像技术对肝癌集束电极射频治疗术前后肿瘤的血供情况、肝动脉、门静脉血流动力学的改变进行了观察。方法 采用彩色多普勒血流显像仪对３０例肝癌患，集速 电极射频治疗术前后１ｗｋ肝脏及肿瘤内血流动力学变化进行观察。结果 集速电射频治疗后１ｗｋ肝脏动脉血流速度较术前明显降低，门脉血流速度无明显变化，治疗前３０例肝癌患４３个结节中３６个可测及血流信号，以动静脉混合血流供血为主，治疗后有

Hemodynamic changes of hepatic and tumor in hepatic cancer before and aft er cluster electrode radio frequency ablation

AIM The hemodynamic changes of HA, PV and tumors in hepatic cancer patients treated by cluster electrode radio frequency ablation were studied with color Doppler flow imaging (CDFI). METHODS The hemodynamic changes of HA, PV and 42 tumors in 30 cases of hepatic cancer were investigated by CDFI before and after one week of cluster electrode radio frequency ablation. RESULTS One week after radio frequency, the velocity of HA decreased ( P <0.05). but the diameter and velocity of PV had no change. Before radio frequency ablation the blood signals were found in 35 cancer nodes (83.0% of all 42 nodes). After radio frequency ablation the blood signals were reduced in 15 nodes and disappeared in 14 nodes. The early investigation implied that the decrease of blood supplement was parallel with the reduction in the node size. But the huge nodes with double blood supplement were not better than the small nodes. CONCLUSION CDFI is useful to assess the blood supplement in ablation of hepatic cancer using cluster electrode radio frequency therapy.