Gut Liver.
2012 Oct;6(4):471-475.
Comparison of Internally Cooled Wet Electrode and Hepatic Vascular Inflow Occlusion Method for Hepatic Radiofrequency Ablation
- Affiliations
-
- 1Department of Radiology, Dankook University Hospital, Dankook University College of Medicine, Cheonan, Korea.
- 2Department of Radiology, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea. jscho@cnu.ac.kr
- 3Department of Radiology, Bundang CHA Hospital, CHA University College of Medicine, Seongnam, Korea.
- 4Department of Surgery, Inje University Seoul Paik Hospital, Inje University College of Medicine, Seoul, Korea.
- 5Department of Veterinary Radiology, Chonbuk National University College of Veterinary Medicine, Iksan, Korea.
Abstract
- BACKGROUND/AIMS
Various strategies to expand the ablation zone have been attempted using hepatic radiofrequency ablation (RFA). The optimal strategy, however, is unknown. We compared hepatic RFA with an internally cooled wet (ICW) electrode and vascular inflow occlusion.
METHODS
Eight dogs were assigned to one of three groups: only RFA using an internally cooled electrode (group A), RFA using an ICW electrode (group B), and RFA using an internally cooled electrode with the Pringle maneuver (group C). The ablation zone diameters were measured on the gross specimens, and the volume of the ablation zone was calculated.
RESULTS
The ablation zone volume was greatest in group B (1.82+/-1.23 cm3), followed by group C (1.22+/-0.47 cm3), and then group A (0.48+/-0.33 cm3). The volumes for group B were significantly larger than the volumes for group A (p=0.030). There was no significant difference in the volumes between groups A and C (p=0.079) and between groups B and C (p=0.827).
CONCLUSIONS
Both the usage of an ICW electrode and hepatic vascular occlusion effectively expanded the ablation zone. The use of an ICW electrode induced a larger ablation zone with easy handling compared with using hepatic vascular occlusion, although this difference was not statistically significant.
Keyword
- Full Text Links
-
- Actions
-
Cited
- CITED
-
- Close
- Share
-
- Similar articles
-
- Treatment Outcomes of Percutaneous Radiofrequency Ablation for Hepatocellular Carcinomas: Effects of the Electrode Type and Placement Method
- Optimization of Wet Radiofrequency Ablation Using a Perfused-Cooled Electrode: A Comparative Study in Ex Vivo Bovine Livers
- Radio-frequency Ablation in Patients with Malignant Hepatic Tumor and Experimental Model: Comparison of Expandable Needle and Water-Cooled Needle
- Comparison of Radiofrequency Ablation Lesion Size with Occlusion of Renal Vessels in Rabbit Kidneys: Occlusion of Renal Artery, Vein, and Both Vessels
- Bipolar Radiofrequency Ablation Using Dual Internally Cooled Wet Electrodes: Experimental Study in Ex Vivo Bovine Liver
