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Updated: Jul 9, 2026

Robotic Ablation of Atrial Fibrillation
11:21

Robotic Ablation of Atrial Fibrillation

Published on: May 29, 2015

Percutaneous radiofrequency ablation with a multiple-electrode switching-generator system.

Adam J Weisbrod1, Thomas D Atwell, Matthew R Callstrom

  • 1Department of Radiology, Mayo Clinic, 200 1st St SW, Mayo-West 2, Rochester, MN 55905, USA. weisbrod.adam@mayo.edu

Journal of Vascular and Interventional Radiology : JVIR
|December 7, 2007
PubMed
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Radiofrequency (RF) ablation using a multiple-electrode system is a safe and feasible technique for treating hepatic tumors. This method generates larger ablation volumes compared to single-electrode RF ablation, improving treatment efficacy for liver cancer.

Area of Science:

  • Interventional Radiology
  • Hepatobiliary Oncology
  • Medical Devices

Background:

  • Radiofrequency (RF) ablation is a minimally invasive treatment for liver tumors.
  • Optimizing RF ablation techniques is crucial for maximizing tumor destruction.
  • Multiple-electrode systems offer potential for larger ablation zones.

Purpose of the Study:

  • To assess the feasibility and safety of using a multiple-electrode switching-generator RF ablation system.
  • To evaluate the effectiveness of this system in treating hepatic tumors.
  • To compare ablation volumes achieved with single versus multiple electrodes.

Main Methods:

  • Retrospective review of 35 percutaneous RF ablation procedures in 22 patients.
  • Tumors treated with one, two, or three electrodes based on size and location.

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Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
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Related Experiment Videos

Last Updated: Jul 9, 2026

Robotic Ablation of Atrial Fibrillation
11:21

Robotic Ablation of Atrial Fibrillation

Published on: May 29, 2015

Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing
12:45

Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing

Published on: December 11, 2017

Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
28:13

Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation

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  • Comparison of ablation volumes and tumor sizes across different electrode configurations.
  • Analysis of complications according to SIR reporting standards.

    • Main Results:

    • Ablation volumes were significantly greater with two (40.9 cm3) and three (59.3 cm3) electrodes compared to one (11.7 cm3).
    • Tumor sizes treated ranged from 0.9 to 3.8 cm.
    • No major complications were reported; minor complications occurred in 9% of patients.

    Conclusions:

    • Percutaneous RF ablation with a multiple-electrode switching-generator system is technically feasible and safe for hepatic tumors.
    • This system achieves significantly larger ablation volumes than single-electrode systems.
    • The technique shows promise for improved efficacy in liver tumor treatment.