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Related Experiment Video

Updated: Mar 7, 2026

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

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Finding Optimal Ablation Parameters for Multipolar Radiofrequency Ablation.

Franz G M Poch¹, Christian Rieder², Hanne Ballhausen²

¹1 Charité-Campus Benjamin Franklin, Berlin, Germany.

Surgical Innovation

|February 15, 2017

Summary

This summary is machine-generated.

Multipolar radiofrequency ablation (RFA) can achieve larger ablation sizes in liver tumors. Optimal parameters for applicator distance and energy input ensure consistent ablation area, regardless of minor deviations.

Keywords:

colorectal surgery simulation surgical oncology

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Last Updated: Mar 7, 2026

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

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Published on: February 26, 2013

Area of Science:

Hepatobiliary surgery
Interventional radiology
Oncology

Background:

Radiofrequency ablation (RFA) is limited by ablation size for liver tumors.
Multipolar RFA offers a technical advancement for larger ablations.

Purpose of the Study:

Determine optimal ablation parameters for multipolar RFA.
Investigate the influence of applicator distance and energy input on ablation size.

Main Methods:

Ex vivo porcine liver model used for radiofrequency ablation.
Three internally cooled, bipolar applicators in multipolar mode.
Varied applicator distances and energy inputs, followed by digital analysis of ablation zones.

Main Results:

Ablation area growth was dependent on ablation time, not applicator distance.
Saturation of the minimum ablation zone radius was observed.
Significant differences in ablation radius occurred at lowest and highest energy inputs (P < .05).

Conclusions:

Multipolar RFA parameter selection can minimize deviations without impacting ablation area.
Applicator distance and energy input are key factors in achieving predictable ablation outcomes.