新的信号处理技术提高阻抗心动图的可靠性

Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society Pub Date : 1988-11-01 DOI:10.1109/IEMBS.1988.94395

L. Shyu, S. P. Reddy, J. Nagel, N. Schneiderman

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引用次数: 4

摘要

为了提高心跳间隔、搏量和相关心脏指标的可靠性和准确性，已经开发了不同的技术用于阻抗心电图的参数提取和分割。提出的解决方案改进了以前的技术:(1)大大减少了心周期内事件定位的抖动;(2)即使存在伪影和干扰信号，也能精确测定信号幅度;③消除呼吸信号调制对参数提取的影响。

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New signal processing techniques for improved reliability of impedance cardiography

Different techniques have been developed for parameter extraction and segmentation of the impedance cardiogram for improved reliability and precision of beat-to-beat determination of systolic time intervals, stroke volume, and related cardiac indices. The solutions presented improve on previous techniques by: (1) substantially reducing jitter in the localization of events within the cardiac cycle; (2) providing exact determination of signal amplitudes even in the presence of artifacts and interference signals; and (3) eliminating the influence of respiratory signal modulation on parameter extraction.<>

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

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