Time-space analysis of endocardial potentials mapped during antitachycardia surgery in patients with ventricular tachycardia

Proceedings of Computers in Cardiology Conference Pub Date : 1993-09-05 DOI:10.1109/CIC.1993.378486

J. Vogel, K. Haberl, M. Rudolph, R. Pulter, E. Kreuzer, B. Reichart, G. Steinbeck, R. Haberl

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引用次数: 1

Abstract

Computer mapping during antitachycardia surgery in patients with ventricular tachycardia offers a new dimension for precise localization of the arrhythmogenic area. However, until now in most mapping systems analysis is restricted to signal processing in the time dimension. Further information might be accessible by treating data as multi-dimensional both in time and space. The authors employed high-resolution frequency-wavenumber spectral estimation on endocardial balloon electrograms to analyze wavefronts of cardiac excitation in space and time. This allowed to determine local activation as a result of a propagating wavefront in the sensor array instead of time domain analysis of only one single channel. The method allows to extract parameters like speed, direction, power and shape of propagating waves present in a set of endocardial signals, thus providing a powerful tool for the analysis of complex activation sequences of cardiac excitation during antitachycardia surgery.<>

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室性心动过速患者抗心动过速手术期间心内膜电位图的时空分析

在室性心动过速患者的抗心动过速手术中的计算机制图为精确定位心律失常区域提供了一个新的维度。然而，到目前为止，大多数映射系统的分析都局限于时间维度的信号处理。通过将数据视为时间和空间上的多维数据，可以获得进一步的信息。采用心内膜球囊电图的高分辨率频率波数谱估计，分析心脏兴奋的波前在空间和时间上的变化。这允许确定局部激活作为传感器阵列中传播波前的结果，而不是只有一个单一通道的时域分析。该方法可以提取一组心内膜信号中传播波的速度、方向、功率和形状等参数，从而为分析抗心动过速手术期间心脏兴奋的复杂激活序列提供了强大的工具。

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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Proceedings of Computers in Cardiology Conference

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