Validating the Comparison Framework for the Finite Dimensions Model of Concentric Ring Electrodes Using Human Electrocardiogram Data
Validating the Comparison Framework for the Finite Dimensions Model of Concentric Ring Electrodes Using Human Electrocardiogram Data
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DOI：
10.3390/app9204279
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发表时间：
2019-10-01
影响因子：
2.7
通讯作者：
Garcia-Casado, Javier
中科院分区：
文献类型：
--
作者：
Makeyev, Oleksandr;Musngi, Mark;Garcia-Casado, Javier
虽然在同心环电极的设计优化方面取得了进展，使表面拉普拉斯估计的准确性最大化，但它完全基于电极的可忽略尺寸模型。新的有限尺寸模型的概念的最新证明，该模型将中心盘的半径和同心环的宽度添加到先前包括的环的数量和环间距离，为更全面的设计优化提供了机会。在这项研究中，上述概念证明被开发成一个框架，允许直接比较任何两个相同尺寸和相同数量的环的同心环电极。所提出的框架上说明了恒定的和线性增加的环间距离三极同心环电极配置和验证心电图从20个人类志愿者。特别是，使用两种电极配置之间的截断项系数的比率来证明可忽略模型和有限维模型之间的相似性（p = 0.077）。基于这两个模型的拉普拉斯估计被计算在心电图数据上，用于仿真环间距线性增加的三极同心环电极。估计值之间的差异无统计学意义（p >> 0.05），这与分析结果一致。
While progress has been made in design optimization of concentric ring electrodes maximizing the accuracy of the surface Laplacian estimation, it was based exclusively on the negligible dimensions model of the electrode. Recent proof of concept of the new finite dimensions model that adds the radius of the central disc and the widths of concentric rings to the previously included number of rings and inter-ring distances provides an opportunity for more comprehensive design optimization. In this study, the aforementioned proof of concept was developed into a framework allowing direct comparison of any two concentric ring electrodes of the same size and with the same number of rings. The proposed framework is illustrated on constant and linearly increasing inter-ring distances tripolar concentric ring electrode configurations and validated on electrocardiograms from 20 human volunteers. In particular, ratios of truncation term coefficients between the two electrode configurations were used to demonstrate the similarity between the negligible and the finite dimension models analytically (p = 0.077). Laplacian estimates based on the two models were calculated on electrocardiogram data for emulation of linearly increasing inter-ring distances tripolar concentric ring electrode. The difference between the estimates was not statistically significant (p >> 0.05) which is consistent with the analytic result.