PMID: 15235237Jul 6, 2004Paper

Saline-enhanced hepatic radiofrequency ablation using a perfused-cooled electrode: comparison of dual probe bipolar mode with monopolar and single probe bipolar modes

Korean Journal of Radiology : Official Journal of the Korean Radiological Society
Jeong Min LeeByung Ihn Choi

Abstract

To determine whether saline-enhanced dual probe bipolar radiofrequency ablation (RFA) using perfused-cooled electrodes shows better in-vitro efficiency than monopolar or single probe bipolar RFA in creating larger coagulation necrosis. RF was applied to excised bovine livers in both bipolar and monopolar modes using a 200 W generator (CC-3; Radionics) and the perfused-cooled electrodes for 10 mins. After placing single or double perfused-cooled electrodes in the explanted liver, 30 ablation zones were created at three different regimens: group A; saline-enhanced monopolar RFA, group B; saline-enhanced single probe bipolar RFA, and group C; saline-enhanced dual probe bipolar RFA. During RFA, we measured the tissue temperature at 15 mm from the electrode. The dimensions of the ablation zones and changes in the impedance currents and liver temperature during RFA were then compared between the groups. The mean current values were higher for monopolar mode (group A) than for the bipolar modes (groups B and C): 1550+/-25 mA in group A, 764+/-189 mA in group B and 819+/-98 mA in group C (p < 0.05). The volume of RF-induced coagulation necrosis was greater in group C than in the other groups: 27.6+/-2.9 cm(3) in group A, 23.7+/-3.8 cm(...Continue Reading

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Oct 8, 2003·Korean Journal of Radiology : Official Journal of the Korean Radiological Society·Jeong Min LeeByung Ihn Choi

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Citations

Sep 28, 2005·Cardiovascular and Interventional Radiology·Seung Kwon Kim, Jung Wook Seo
Jul 15, 2015·International Journal of Hyperthermia : the Official Journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group·Stefaan MulierYicheng Ni
Jul 15, 2015·Cardiovascular and Interventional Radiology·Ya Ruth HuoDavid L Morris
Jan 8, 2005·Korean Journal of Radiology : Official Journal of the Korean Radiological Society·Jeong Min LeeByung Ihn Choi
May 26, 2017·International Journal of Hyperthermia : the Official Journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group·Macarena TrujilloEnrique Berjano
Jul 1, 2020·Minimally Invasive Therapy & Allied Technologies : MITAT : Official Journal of the Society for Minimally Invasive Therapy·Myung Sub KimKyung A Kang
Jul 7, 2011·Technology in Cancer Research & Treatment·Oyinlolu O AdeyanjuA V Sahakian
Jun 5, 2021·Journal of Investigative Surgery : the Official Journal of the Academy of Surgical Research·Chengming QuKuansheng Ma

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