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On-line analysis of cardiac near field signals during electrophysiological experiments with heart preparations

机译:心脏制剂电生理实验期间心脏近代的心脏近的心脏近分析

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Two signal processing algorithms for the on-line analysis of local propagation of activation during electrophysiological in-vitro experiments with heart preparations are presented. The first algorithm computes local velocity and direction of the propagating activation wave. Along with the values, their uncertainties due to noise are given. The second algorithm determines the fractionation index, a quantitative measure to characterize fractionated electrograms. These parameters are expected to provide valuable information for the characterization of the microstructure of the tissue under examination. The implementation of these algorithms in a measurement system allows the on-line monitoring of the resulting parameters in a beat-to-beat manner for heart rates up to 1800 beats per minute. This enables the examination of tachycardia even in fast beating preparations like the mouse heart.
机译:提出了两种信号处理算法,用于在微生物制剂的电生理体外实验期间激活局部传播的在线分析。 第一算法计算传播激活波的局部速度和方向。 随着价值,给出了由于噪声引起的不确定性。 第二算法确定分馏指数,是表征分级电图的定量测量。 预计这些参数将提供有价值的信息,以表征在检查中的组织的微观结构。 测量系统中这些算法的实现允许以拍打的方式在线监测所得到的参数,以便为每分钟的心率高达1800次。 这使得即使在像小鼠心脏的快速跳动制剂中,也可以检查心动过速。

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