在除颤模型中表现经静脉电极表面几何形状和电极电阻的重要性

Proceedings of 16th Annual International Conference of the IEEE Engineering in Medicine and Biology Society Pub Date : 1994-11-03 DOI:10.1109/IEMBS.1994.412174

R. Pendekanti, C. Henriquez, P. Wolf

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引用次数: 3

摘要

经静脉除颤(TVD)电极在内部除颤过程中产生的电位梯度场通常使用体积导体模型计算。大多数除颤模型将TVD电极表示为等电位圆柱形棒，而不考虑电极特征，如电极电阻、表面几何形状和电极-电解质阻抗。这项研究着眼于前两个特征的影响。水箱研究和有限元模型的结果表明，不考虑表面几何形状和电极电阻影响的除颤模型可能低估总除颤阻抗约10%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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The importance of representing surface geometry and electrode resistance of transvenous electrodes in defibrillation models

The potential gradient fields created by transvenous defibrillation (TVD) electrodes during internal defibrillation are often calculated using volume conductor models. Most defibrillation models represent the TVD electrode as an equipotential cylindrical rod and do not account for electrode features like electrode resistance, surface geometry, and electrode-electrolyte impedance. This study looks into the effects of the first two features. Results from tank studies and finite element models indicate that defibrillation models that do not consider the effects of surface geometry and electrode resistance can underestimate the total defibrillation impedance by about 10%.<>

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Proceedings of 16th Annual International Conference of the IEEE Engineering in Medicine and Biology Society

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