title: Hemodynamic changes in hepatic cancer before and after cluster electrode radio-frequency ablation.
abstract: OBJECTIVE
  To evaluate the hemodynamic changes of hepatic artery (HA), portal vein (PV) and tumors in hepatic cancer patients treated by cluster electrode radio-frequency ablation with the aid of 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 one week before and after cluster electrode radio-frequency ablation.
  
  
  RESULTS
  One week after radio-frequency ablation, the velocity of HA decreased (P<0.05), but the diameter and velocity of PV unchanged. Before radio-frequency ablation, blood signals were observed in 35 cancer nodes (83.0% of all 42 nodes). After radio-frequency ablation, blood signals were reduced in 15 nodes and disappeared in 14 nodes. Early investigation implied that the decrease of blood supply was parallel with the reduction of node size. However, the outcome in case of huge nodes with double blood supply was not as promising as those small nodes.
  
  
  CONCLUSIONS
  CDFI is useful to assess blood supply in ablation of hepatic cancer by using cluster electrode radio-frequency therapy.
authors: Department of Ultrasound Diagnostics, Tangdu Hospital, Fourth Military Medical University, Xi'an 710038, China. luo-123@263.net
authors: Shu-Rong
authors: SR
authors: Luo
authors: Yun-You
authors: YY
authors: Duan
authors: Bo-Shan
authors: BS
authors: Zhao
authors: Li-Jun
authors: LJ
authors: Yuan
mesh_terms: D000328:Adult; D017115:Catheter Ablation; D005260:Female; D006439:Hemodynamics; D006499:Hepatic Artery / Q000503:physiopathology; D006801:Humans; D008113:Liver Neoplasms / Q000098:blood supply* / Q000503:physiopathology / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D011169:Portal Vein / Q000503:physiopathology; D011184:Postoperative Period