A novel "cooled-wet" electrode for radiofrequency ablation.
In the light of growing demands for improved applicability of radiofrequency ablation (RFA), recently we have developed a novel "cooled-wet" electrode by taking the advantages of both internally cooled and saline-enhanced electrodes. The efficacy of the electrode was evaluated in both ex vivo and in vivo liver RFA under both low and high power output levels. The ablation volume created with the "cooled-wet" electrode appeared to be much larger than that reported up to now with the use of other monopolar electrodes. The mechanisms on how this device optimizes the RF energy delivery are also discussed.
Ni
Y
Y
Department of Radiology, University Hospitals, Leuven, Belgium.
Miao
Y
Y
Mulier
S
S
Yu
J
J
Baert
A L
AL
Marchal
G
G
D000818:Animals; D017115:Catheter Ablation / Q000295:instrumentation*; D002417:Cattle; D003080:Cold Temperature; D017097:Electric Impedance; D011211:Electric Power Supplies; D004566:Electrodes; D004867:Equipment Design; D008099:Liver / Q000473:pathology / Q000601:surgery; D009336:Necrosis; D012965:Sodium Chloride; D013499:Surface Properties; D013552:Swine; D013696:Temperature
D012965:Sodium Chloride