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    • 1. 发明授权
    • Method and apparatus for automatic analysis of T-wave alternans
    • 用于自动分析T波交替的方法和装置
    • US08315698B2
    • 2012-11-20
    • US12480349
    • 2009-06-08
    • David Cuesta FrauPedro Mateo Riobo Aboy
    • David Cuesta FrauPedro Mateo Riobo Aboy
    • A61B5/0472
    • A61B5/0452A61B5/7264
    • The invention disclosed includes a method and apparatus for calculation of T-wave alternas in electrocardiographic (ECG) signals; said method comprises the following method steps: (a) collecting and storing an ECG signal; (b) detecting each heartbeat T-wave in the ECG signal using an automatic detection and segmentation algorithm; (c) classifying said heartbeat T-wave as an even or odd heartbeat T-wave; (d) initializing said method by taking the first even and the first odd heartbeat T-wave as their respective initial average; (e) processing all the heartbeat T-waves in the ECG signal to generate an even heartbeat T-wave weighted average and odd heartbeat T-wave weighted average; and (f) calculating TWA using a distance metric between the even heartbeat weighted average and the odd heartbeat weighted average, said distance metric including curve matching Continuous Dynamic Time Warping (CDTW).
    • 所公开的发明包括用于计算心电图(ECG)信号中的T波交替的方法和装置; 所述方法包括以下方法步骤:(a)收集和存储ECG信号; (b)使用自动检测和分割算法检测ECG信号中的每个心跳T波; (c)将所述心跳T波分类为偶数或奇数心跳T波; (d)通过将第一偶数和第一奇数心跳T波作为它们各自的初始平均值来初始化所述方法; (e)处理ECG信号中的所有心跳T波,以产生均匀的心跳T波加权平均和奇数心跳T波加权平均; 和(f)使用均匀心跳加权平均和奇数心跳加权平均值之间的距离度量计算TWA,所述距离度量包括曲线匹配连续动态时间扭曲(CDTW)。