Hemodynamic changes in hepatic cancer before and after cluster electrode radio-frequency ablation

摘要

Objective: To evaluate the hemodynamic changes ofhepatic artery (HA), portal vein (PV) and tumorsin hepatic cancer patients treated by cluster electroderadio-frequency ablation with the aid of colorDoppler flow imaging (CDFI).Methods: The hemodynamic changes of HA, PV and42 tumors in 30 cases of hepatic cancer were investi-gated by CDFI one week before and after cluster e-lectrode radio-frequency ablation.Results: One week after radio-frequency ablation,the velocity of HA decreased (P0.05), but the dia-meter and velocity of PV unchanged. Before radio-frequency ablation, blood signals were observed in 35cancer nodes (83.0 % of all 42 nodes). After radio-frequency ablation, blood signals were reduced in 15nodes and disappeared in 14 nodes. Early investiga-tion implied that the decrease of blood supply wasparallel with the reduction of node size. However,the outcome in case of huge nodes with double bloodsupply was not as promising as those small nodes.Conclusion: CDFI is useful to assess blood supply inablation of hepatic cancer by using cluster electroderadio-frequency therapy.