Key result
Modifying the shape of RF ablation electrodes by recessing, adding curvature, and coating with resistive material achieved a more uniform current density compared to conventional tip electrodes.
Population
Computational models of radio-frequency (RF) cardiac ablation electrodes
Comparison
Modified electrode designs including recessed… vs Conventional 5-mm tip electrode and insulating…
Design
Preclinical
Authors
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Modified electrode designs may improve RF ablation safety; leaves open clinical translation from animal models.
Finite element analysis demonstrates that modifying RF ablation electrode designs with recessed edges and resistive coatings can achieve more uniform current density, potentially reducing charring and blood coagulation.
Tungjitkusolmun et al. (2000) studied Radio-frequency (RF) cardiac ablation. Modified electrode designs (recessing, curvature, resistive coating) vs. Conventional tip electrode was evaluated on Current density distribution. Modifying the shape of RF ablation electrodes by recessing, adding curvature, and coating with resistive material achieved a more uniform current density compared to conventional tip electrodes.
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