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Treatment Outcomes of Percutaneous Radiofrequency Ablation for Hepatocellular Carcinomas: Effects of the Electrode Type and Placement Method.
Korean J Radiol
August 2023
Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
Objective: To investigate the association among the electrode placement method, electrode type, and local tumor progression (LTP) following percutaneous radiofrequency ablation (RFA) for small hepatocellular carcinomas (HCCs) and to assess the risk factors for LTP.
Materials And Methods: In this retrospective study, we enrolled 211 patients, including 150 males and 61 females, who had undergone ultrasound-guided RFA for a single HCC < 3 cm. Patients were divided into four combination groups of the electrode type and placement method: 1) tumor-puncturing with an internally cooled tip (ICT), 2) tumor-puncturing with an internally cooled wet tip (ICWT), 3) no-touch with ICT, and 4) no-touch with ICWT.
[Percutaneous cooled-tip microwave ablation under ultrasound guidance for primary liver cancer: analysis of major complications in 693 patients].
Zhonghua Zhong Liu Za Zhi
December 2012
Department of Interventional Ultrasoud, Chinese PLA General Hospital, Beijing 100853, China.
Objective: To analyze the major complications of percutaneous cooled-tip microwave ablation for the treatment of primary liver cancer and the possible risk factors of severe complications in a series of 693 patients.
Methods: The clinicopathological data of 693 patients with primary liver cancer who underwent ultrasound-guided percutaneous cooled-tip microwave (MW) ablation in our hospital over the past 5 years were retrospectively analyzed, and the risk factors of severe complications were explored.
Results: In a total of 693 patients with 898 primary liver tumors were treated and 1111 MW ablation sessions were performed.
Protection of the renal collecting system during radiofrequency ablation with antegrade cold dextrose infusion.
Radiology
September 2010
Department of Radiology, Seoul National University Bundang Hospital, Seoul, Korea.
Purpose: To evaluate the feasibility and efficacy of antegrade renal cooling during radiofrequency (RF) ablation to protect the renal collecting system in pigs.
Materials And Methods: With the approval of the institutional animal care and use committee, RF ablation was planned bilaterally after nephrostomy in 20 kidneys from 10 domestic pigs. A coaxial assembly consisting of a 7-F pigtail catheter and a 12-F arterial sheath was placed at the renal pelvis.
[Interventional radiological treatment of hepatocellular carcinoma].
Orv Hetil
July 2010
Semmelweis Egyetem, Altalános Orvostudományi Kar, Transzplantációs és Sebészeti Klinika, Budapest.
During the last years, interventional radiological treatment of hepatocellular cancer has changed dramatically. The percutaneous ethanol infiltration is partly replaced by thermoablative methods, mainly by radiofrequency ablation. Cooled-tip electrodes and volumetric therapy planning increased the treatment success.
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