A comparison of methods for estimating endocardial potentials from a noncontact probe

R. Throne, L. Olson, G. Bu, J. Windle
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Abstract

In this paper we compare zero and first order Tikhonov and Generalized Eigensystem (GES) regularization for estimating the endocardial potentials from measured potentials on a noncontact probe. In all cases, the Composite Residual Error and Smoothing Operator (CRESO) was used to estimate the regularization parameter In this limited study the use of higher order regularization produced larger average correlation coefficients between the estimated and measured endocardial electrograms.
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非接触式探头估计心内膜电位方法的比较
本文比较了零阶和一阶吉洪诺夫正则化和广义本征系统正则化在非接触探针上测量心内膜电位估计中的应用。在所有情况下,使用复合残差和平滑算子(CRESO)来估计正则化参数。在这项有限的研究中,使用高阶正则化在估计的心内膜电图和测量的心内膜电图之间产生较大的平均相关系数。
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