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METHODS AND SYSTEMS FOR STATISTICALLY ANALYZING ELECTROGRAMS FOR LOCAL ABNORMAL VENTRICULAR ACTIVITIES AND MAPPING THE SAME
METHODS AND SYSTEMS FOR STATISTICALLY ANALYZING ELECTROGRAMS FOR LOCAL ABNORMAL VENTRICULAR ACTIVITIES AND MAPPING THE SAME
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机译:统计局部局部心室活动的电子图并对其进行映射的方法和系统
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摘要
Cardiac activity (e.g., a cardiac electrogram) is analyzed for local abnormal ventricular activity (LAVA), such as by using a LAVA detection and analysis module incorporated into an electroanatomical mapping system. The module transforms the electrogram signal into the wavelet domain to compute as scalogram; computes a one-dimensional LAVA function of the scalogram; detects one or more peaks in the LAVA function; and computes a peak-to-peak amplitude of the electrogram signal. If the peak-to-peak amplitude does not exceed a preset amplitude threshold, then the module can compute one or more of a LAVA lateness parameter for the electrogram signal using one of the one or more peaks detected in the LAVA function and a LAVA probability parameter for the electrogram signal.
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