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Clinical Info


Liver Radiofrequency Ablation

Liver Radiofrequency ablation (RFA) is a treatment that use image guidance to place a needle through the skin into a liver tumor. In RFA, high-frequency electrical currents are passed through an electrode in the needle, creating a small region of heat. The heat destroys the liver cancer cells.

Learn more about Liver RFA products

VIVA RF Generator

The VIVA RF Generator is designed to create the predictable and consistent ablation zone by using the optimized ablation modes for various nodules. It also has convenient and useful functions including to the easy operation structure and smart user interface to provide the exact information related to procedure details which is able to be translated to computer for recording patient treatment data.

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VIVA multi RF Generator

The VIVA multi RF Generator is designed to create the predictable and consistent ablation zone by using the optimized ablation modes for various nodules. It also has convenient and useful functions including to the easy operation structure and smart User Interface to provide the exact information related to procedure details which is able to be translated to computer for recording patient treatment data.

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Octopus RF Electrode

Octopus RF electrodes are designed three kinds of active tips, which ablate lesions that are larger than 3cm in a single procedure. Octopus RF electrodes offers design for radiofrequency thermal coagulation diameter and RF parameters; enable each component of ablation size zone is used by one of the electrodes in less than 2cm local tissue heating, using two of the electrodes in measuring 2cm to 3cm local tissue, and using three of the electrodes in larger than 3cm of the local tissue heating.

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star RF Electrode-Fixed

The star RF electrodes of fixed type are intended to be used in percutaneous, intraoperative and laparoscopic approaches in radiofrequency ablation procedures. Coolant circulation system of electrode maintains suitable impedance at the surface of electrode. It also prevents tissue adjacent to active tip from charring and helps to make a spherical ablation zone.

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VIVA RF Electrode

The VIVA RF electrode is single electrode which is designed to be used in multiple nodules. Traditional single electrodes make the fixed ablation volume, but it is able to make the varisized ablation volume by adjusting an active tip.

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Professional Education Program

Liver Hepatocellular Carcinoma (HCC): Radiofrequency Ablation

  • Location: Seoul, South Korea
  • Course Schedule in 2017-2019

Course Schedule in 2017 - 2018

No Schedule Deadline for application
1st 8Nov.2017 - 10Nov.2017 30sep. 2017
2nd 8Nov.2017 - 10Nov.2017 30sep. 2017
3rd 8Nov.2017 - 10Nov.2017 30sep. 2017
4th 8Nov.2017 - 10Nov.2017 30sep. 2017


Thyroid Radiofrequency Ablation Guideline

MANAGEMENT OF HCC - BCLC Barcelona Clínic Liver Cancer​

  • Forner A, Reig M, Bruix J. Lancet, 2018 Mar
  • 31;391(10127):1301-1314

Asia–Pacific clinical practice guidelines on the management of
hepatocellular carcinoma: a 2017 update


Percutaneous Radiofrequency Ablation of Hepatocellular Carcinoma: Fusion Imaging Guidance for Management of Lesions With Poor Conspicuity at Conventional Sonography AJR 2011 Min Woo Lee
Early diffuse recurrence of hepatocellular carcinoma after percutaneous radiofrequency ablation: analysis of risk factors Eur Radiol 2012 Hee Young Lee
Venous Thrombosis After Radiofrequency Ablation for Hepatocellular Carcinoma AJR 2011 Ah Yeong Kim
Percutaneous Radiofrequency Ablation with Multiple Electrodes for Medium-Sized Hepatocellular Carcinomas KJR 2012 Jung Lee
Clinical value of CT/MR-US fusion imaging for radiofrequency ablation of hepatic nodules Eur J Radiol 2011 Jae Young Lee
Radiofrequency Ablation for Viable Hepatocellular Carcinoma around Retained Iodized Oil after Transcatheter Arterial Chemoembolization: Usefulness of Biplane Fluoroscopy Plus Ultrasound Guidance KJR 2012 Ji Hye Min
Multiple electrode radiofrequency ablations using Octopus electrodes in an in vivo porcine liver model Brit J Radiol 2012 E S Lee
Radiofrequency Ablation Combined with Chemoembolization for Intermediate-Sized (3-5 cm) Hepatocellular Carcinomas Under Dual Guidance of Biplane Fluoroscopy and Ultrasonography KJR 2013 Ji Hye Min
Evaluation of the In Vivo Efficiency and Safety of Hepatic Radiofrequency Ablation Using a 15-G Octopus® in Pig Liver KJR 2013 Eun Sun Lee
Therapeutic Efficacy and Safety of Percutaneous Ethanol Injection with or without Combined Radiofrequency Ablation for Hepatocellular Carcinomas in High Risk Locations KJR 2013 Dong IK Cha
Small- and Medium-sized Hepatocellular Carcinomas: Monopolar Minimize Radiofrequency Ablation with a Multiple-Electrode Switching System—Mid-term Results Radiology 2013 Sungmin Woo
Dual Switching Monopolar Radiofrequency Ablation Using a Separable Clustered Electrode: Comparison with Consecutive and Switching Monopolar Modes in Ex Vivo Bovine Livers KJR 2013 Jeong-Hee Yoon
Planning US for Percutaneous Radiofrequency Ablation of Small Hepatocellular Carcinomas (1–3 cm): Value of Fusion Imaging with Conventional US andCT/MRImages J Vasc Sur 2013 Min Woo Lee
Radiofrequency Ablation Combined with Transcatheter Arterial Chemoembolization for the Treatment of Single Hepatocellular Carcinoma of 2 to 5 cm in Diameter: Comparison with Surgical Resection KJR 2013 Jin Woong Kim
Computed Tomographic-Guided Radiofrequency Ablation of Recurrent or Residual Hepatocellular Carcinomas around Retained Iodized Oil after Transarterial Chemoembolization KJR 2013 Young Hwan Koh
Radiofrequency ablation using a new type of internally cooled electrode with an adjustable active tip: An experimental study inex vivo bovine and in vivo porcine livers EJR 2009 Jihoon Cha
Monopolar Radiofrequency Ablation Using a Dual- Switching System and a Separable Clustered Electrode: Evaluation of the In Vivo Efficiency KJR 2014 Jeong Hee Yoon
Pretreatment Evaluation with Contrast-Enhanced Ultrasonography for Percutaneous Radiofrequency Ablation of Hepatocellular Carcinomas with Poor Conspicuity on Conventional Ultrasonography KJR 2013 Ah Yeong Kim
Radiofrequency ablation of very-early-s tage hepatocellular carcinoma inconspicuous on fusion imaging with B-mode US: value of fus ion imaging with contras t-enhanced US Clin Mol Hepatol 2014 Ji Hye Min
Fusion Imaging–Guided Radiofrequency Ablation for Hepatocellular Carcinomas Not Visible on Conventional Ultrasound AJR 2013 Kyoung Doo Song
Comparison of therapeutic efficacy and safety of radiofrequency ablation of hepatocellular carcinomas between internally cooled 15-G and 17-G single electrodes BJR 2014 H J Park
Considering Angle Selection When Using Ultrasound Electrode Displacement Elastography to Evaluate Radiofrequency Ablation of Tissues BioMed Research International 2014 Jingjing Xia
Percutaneous radiofrequency ablation of hepatic tumours: Factors affecting technical failure of artificial ascites formation using an angiosheath Journal of Vascular and Interventional Radiology 2014 Sang Hyeok Lim
A Novel Electrode With Electromagnetic Tip Tracking in Ultrasonography-Guided Radiofrequency Ablation A Phantom, Ex Vivo, and In Vivo Experimental Study Invest Radiol 2015 Tae Wook Kang
Role of Radiofrequency Ablation in Patients with Hepatocellular Carcinoma Who Undergo Prior Transarterial Chemoembolization: Long-Term Outcomes and Predictive Factors Gut and Liver 2014 Won Sohn
Alteration of laboratory findings after radiofrequency ablation of hepatocellular carcinoma: relationship to severity of the underlying liver disease and the ablation volume Clinical and Molecular Hepatology 2015 Sang-Wook Shin
Early Stage Hepatocellular Carcinomas Not Feasible for Ultrasound-Guided Radiofrequency Ablation: Comparison of Transarterial Chemoembolization Alone and Combined Therapy with Transarterial Chemoembolization and Radiofrequency Ablation Cardiovasc Intervent Radiology 2015 Dongho Hyun
CT-Guided Percutaneous Step-by-Step Radiofrequency Ablation for the Treatment of Carcinoma in the Caudate Lobe Medicine 2015 Jun Dong
Locoregional treatment for hepatocellular carcinoma: The best is yet to come World J of Radiology 2015 Naveen Kalra
Postablation Assessment Using Follow-Up Registration of CT Images Before and After Radiofrequency Ablation (RFA): Prospective Evaluation of Midterm Therapeutic Results of RFA for Hepatocellular Carcinoma AJR: 2014 Sooyoung Shin
Repeated Percutaneous Radiofrequency Ablation for Hepatocellular Carcinoma in Patients with Cirrhosis: Assessment of Safety Based on Liver Function and Portal Hypertension Parameters JVIR 2014 Sunyoung Lee
Local tumour progression after loco-regional therapy of hepatocellular carcinomas: Value of fusion imaging-guided radiofrequency ablation Clinical Radiology 2014 J.H. Min
Pre-treatment Estimation of Future Remnant Liver Function using Gadoxetic acid MRI in Patients with HCC Journal of Hepatology 2016 So Yeon Kim, MD
Switching Monopolar Radiofrequency Ablation Using a Separable Cluster Electrode in Patients with Hepatocellular Carcinoma PLOS One 2016 Jin Woo Choi
Switching Monopolar Radiofrequency Ablation Using a Separable Cluster Electrode in Patients with Hepatocellular Carcinoma: A Prospective Study PLOS One 2016 Jeong Min Lee
Angled Cool-Tip Electrode for Radiofrequency Ablation of Small Superficial Subcapsular Tumors in the Liver: A Feasibility Study KJR 2016 Sung Il Park
Outcomes of Transarterial Chemoembolization With or Without Additional Radiofrequency Ablation in Hepatocellular Carcinoma of 2 to 5 cm in Diameter VASCULAR & INTERVENTIONAL RADIOLOGY 2016 Sung-Bum Cho
Hepatic radiofrequency ablation: in vivo and ex vivo comparisons of 15-gauge (G) and 17-G internally cooled electrodes the British Institute of Radiology 2015 Min Woo Lee
Aggressive Intrasegmental Recurrence of Hepatocellular Carcinoma after Radiofrequency Ablation Radiology 2015 Hyunchul Rhim
Monitoring Radiofrequency Ablation Using Real-Time Ultrasound Nakagami Imaging Combined with Frequency and Temporal Compounding Techniques PLOS One 2015 Shuicai Wu
Hepatocellular Carcinoma: Diagnostic Performance of Multidetector CT and MR Imaging—A Systematic Review and Meta-Analysis Radiology 2015 Jeong Min Lee
Combined Use of MR Fat Quantification and MR Elastography in Living Liver Donors: Can It Reduce the Need for Preoperative Liver Biopsy? Radiology 2015 Jeong Hee Yoon
Comparative Effects of Dexmedetomidine and Propofol on US-Guided Radiofrequency Ablation of Hepatic Neoplasm Under Monitored Anesthesia Care Medicine 2015 Yong-Moon Shin
Small Hepatocellular Carcinoma: Radiofrequency Ablation versus Nonanatomic Resection—Propensity Score Analyses of Long-term Outcomes Radiology 2015 Tae Wook Kang
Real-time Contrast-Enhanced Sonographically Guided Biopsy or Radiofrequency Ablation of Focal Liver Lesions Using Perflurobutane Microbubbles (Sonazoid) American Institute of Ultrasound in Medicine 2015 Hee Sun Park
Clinical significance and predictive factors of early massive recurrence after radiofrequency ablation in patients with a single small hepatocellular carcinoma Clinical and Molecular Hepatology 2016 Ju-Yeon Cho
Clinical Utility of Liver Stiffness Measurements on Magnetic Resonance Elastrography in Patients with Hepatocellular Carcinoma Treated with Radiofrequency Ablation Investigative magnetic resonance imaging 2016 Ji Eun Kim
Radiofrequency Ablation with an Internally Cooled Monopolar Directional Electrode: Ex Vivo and in Vivo Experimental Studies in the Liver Radiology 2015 Mi Hye Yu
Percutaneous ultrasonography-guided radiofrequency ablation of hepatocellular carcinomas: usefulness of image fusion with three-dimensional ultrasonography Clinical Radiology 2015 H.J. Park
Radiofrequency ablation and transarterial chemoembolisation as first-line treatment for recurrent hepatocellular carcinoma or isolated intrahepatic recurrent hepatocellular carcinoma in transplanted livers Clinical Radiology 2016 S.S. Kim
Real-time US-CT/MR fusion imaging for percutaneous radiofrequency ablation of hepatocellular carcinoma Journal of radiology 2016 Su Joa Ahn
No-Touch Radiofrequency Ablation: A Comparison of Switching Bipolar and Switching Monopolar Ablation in Ex Vivo Bovine Liver KJR 2017 Won Chang
New Radiofrequency Device to Reduce Bleeding after Core Needle Biopsy: Experimental Study in a Porcine Liver Model KJR 2017 Sanghyeok Lim
No-touch radiofrequency ablation using multiple electrodes: An in vivo comparison study of switching monopolar versus switching bipolar modes in porcine livers PLOS One 2017 Won Chang
Clinical outcomes of laparoscopic radiofrequency ablation of single primary or recurrent hepatocellular carcinoma (≤3 cm) ASTR 2017 Byung Gon Na
Colorectal Cancer Liver Metastases: Diagnostic Performance and Prognostic Value of PET/MR Imaging Radiology 2017 Dong Ho Lee
Ultrasound-Guided Radiofrequency Ablation Using a New Electrode with an Electromagnetic Position Sensor for Hepatic Tumors Difficult to Place an Electrode: A Preliminary Clinical Study Cardiovasc Intervent Radiol 2017 Tae Wook Kang
Combined Therapy of Transcatheter Arterial Chemoembolization and Radiofrequency Ablation versus Surgical Resection for Single 2–3 cm Hepatocellular Carcinoma: A Propensity-Score Matching Analysis JVIR 2017 Hyo-jae Lee
Percutaneous Dual-Switching Monopolar Radiofrequency Ablation Using a Separable Clustered Electrode: A Preliminary Study KJR 2017 Tae Won Choi
Computer-Assisted Hepatocellular Carcinoma Ablation Planning Based on 3-D Ultrasound Imaging Ultrasound in Medicine and Biology 2016 Kai Li
Magnetic resonance imaging with gadoxetic acid for local tumour progression after radiofrequency ablation in patients with hepatocellular carcinoma European Society of Radiology 2016 Hyunchul Rhim
Chronological changes of radiofrequency ablation zone in rabbit liver: an in vivo correlation between gross pathology and histopathology BJR 2017 Min Woo Lee
Liver Stiffness Measured by Two-Dimensional Shear-Wave Elastography: Prognostic Value after Radiofrequency Ablation for Hepatocellular Carcinoma Liver cancer 2018 Dong Ho Lee
Percutaneous radiofrequency ablation of small (1–2 cm) hepatocellular carcinomas inconspicuous on B-mode ultrasonographic imaging: usefulness of combined fusion imaging with MRI and contrast-enhanced ultrasonography 2018 Min Woo Lee
The Effectiveness of Ultrasound-Guided Thoracic Paravertebral Block for Percutaneous Radiofrequency Ablation of Hepatic Tumors: A Pilot Study The Korean Society of Radiology 2018 Hyungtae Kim