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An improved surfaces - ecg - frequency - analyses - arrangement and method, based on the calculation of spectral turbulence
An improved surfaces - ecg - frequency - analyses - arrangement and method, based on the calculation of spectral turbulence
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机译:基于频谱湍流计算的改进表面-心电图-频率-分析-布置和方法
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摘要
Frequency domain ECG signal processing systems and methods plot spectral maps and compute statistical parameters from surface electrocardiographic signals, which plots and parameters reveal abnormalities of electrical conduction within the hearts of patients at risk of ventricular tachycardia. Fourier analysis of short overlapping time segments of QRS ECG signal are used to create three dimensional spectral maps disclosing changes in the frequency spectral content of the ECG signal over the whole QRS region. Correlations and statistical evaluations of the spectral content between QRS time segment pairs quantify the spectral turbulence of the ECG and distinguish those at risk from ventricular tachyarrhythmias.
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