A method and device for detecting p-wave and t-wave in electrocardiographic signal

Abstract

The embodiment of the present invention relates to a method and device for detecting P waves and T waves in ECG signals. The method includes: performing QRS signal detection processing on the received long-range ECG monitoring data to determine the long-range ECG monitoring data. The position information of each QRS complex signal in the data; the long-term ECG monitoring data is subjected to heartbeat classification processing, and the heartbeat classification information of each QRS complex signal is obtained; the long-term ECG monitoring data is filtered, and the filtered Long-term ECG monitoring data; the filtered long-term ECG monitoring data is intercepted according to the sequence of preset durations to obtain data segments of multiple preset durations; according to the classification information of heartbeats, the segments of sinus rhythm are identified and according to the QRS wave group The position information of the signal, the signal amplitude from the start position to the end position of the QRS wave in each sinus heartbeat is set to 0, and the segment data to be processed containing the P wave signal and the T wave signal are obtained, and then the segment data to be processed are processed by T Wave detection and P wave detection.

Description

technical field [0001] The invention relates to the technical field of signal processing, in particular to a method and device for detecting P waves and T waves in electrocardiographic signals. Background technique [0002] Electrocardiogram (ECG or EKG) is a technology that uses an electrocardiogram machine to record the electrical activity change pattern generated by each cardiac cycle of the heart from the body surface, that is, the potential change map that records the bioelectric current generated when the heart beats. [0003] T wave is a ventricular repolarization wave, which is an important feature in the ECG signal and represents the potential change during ventricular repolarization. In conventional ECG analysis, the measurement of many important indicators such as QT interval is based on the accurate positioning of T wave characteristic points. However, due to the diversity of T-wave mentality, the presence of u-wave and various frequency band interference, it is...

AI Technical Summary

Problems solved by technology

However, due to the low amplitude of the P wave, the frequency components are easily aliased with other ECG components, and are sensitive to interference, the detection accuracy of the P wave in the existing technology needs to be improved.

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