Method and apparatus for detection and monitoring of T-wave alternans
    7.
    发明申请
    Method and apparatus for detection and monitoring of T-wave alternans 审中-公开
    用于检测和监测T波交替的方法和装置

    公开(公告)号:US20060116596A1

    公开(公告)日:2006-06-01

    申请号:US11000541

    申请日:2004-12-01

    IPC分类号: A61B5/04

    摘要: A system and method are provided for assessing T-wave alternans (TWA) using cardiac EGM signals received from implanted electrodes. A T-wave signal parameter is measured from signals received by an automatic gain control sense amplifier. A TWA measurement is computed from a beat-by-beat comparison of T-wave parameter measurements or using frequency spectrum techniques. The TWA measurement magnitude and measurement conditions are used in detecting a clinically important TWA. TWA assessment further includes discriminating concordant and discordant TWA in a multi-vector TWA assessment, and determining the association of a TWA measurement with QRS alternans, mechanical alternans, and other physiological events. A prediction of a pathological cardiac event is made in response to a TWA assessment. A response to a cardiac event prediction is provided.

    摘要翻译: 提供了一种使用从植入电极接收的心脏EGM信号评估T波交替(TWA)的系统和方法。 从由自动增益控制读出放大器接收的信号测量T波信号参数。 通过T波参数测量或使用频谱技术的逐拍比较来计算TWA测量。 TWA测量值和测量条件用于检测临床重要的TWA。 TWA评估还包括在多向量TWA评估中区分一致和不一致的TWA,并确定TWA测量与QRS交替,机械交替和其他生理事件的关联。 病理性心脏事件的预测是针对TWA评估做出的。 提供对心脏事件预测的响应。

    Method and apparatus for detection and monitoring of T-wave alternans

    公开(公告)号:US20060116592A1

    公开(公告)日:2006-06-01

    申请号:US11186552

    申请日:2005-07-21

    IPC分类号: A61B5/04

    摘要: A system and method are provided for assessing T-wave alternans (TWA) using cardiac EGM signals received from implanted electrodes. A T-wave signal parameter is measured from signals received by an automatic gain control sense amplifier. A TWA measurement is computed from a beat-by-beat comparison of T-wave parameter measurements or using frequency spectrum techniques. The TWA measurement magnitude and measurement conditions are used in detecting a clinically important TWA. TWA assessment further includes discriminating concordant and discordant TWA in a multi-vector TWA assessment, and determining the association of a TWA measurement with QRS alternans, mechanical alternans, and other physiological events. A prediction of a pathological cardiac event is made in response to a TWA assessment. A response to a cardiac event prediction is provided.