Method and system for detecting start-end points of P-waves and T-waves in multi-lead ECG signals

Abstract

The invention discloses a method and system for detecting the start-end points of P-waves and T-waves in multi-lead ECG signals. The method includes the steps that firstly, according to the waveform and quality of each lead signal, three leads most suitable for P-wave and T-wave location and start-end detection are adaptively selected to be superimposed into a virtual lead; then, through the end point of the former one in two adjacent QRS waves and the start point of the latter one, the virtual lead is divided into a series of regions of search, it is determined that the first half of each region of search is a T-wave search range and the second half of each region of search is a P-wave search range, and the maximum peak values in the ranges are selected as the crests of corresponding characteristic waves; finally, the start-end points of P-waves and T-waves are detected respectively through an accumulative descent method based on dynamic thresholds. According to the method and system,by adopting the multi-lead adaptive selection technology, the robustness of the system is enhanced; by adopting the superposition-to-virtual-lead technology, the accuracy of detecting the start-end points of P-waves and T-waves is improved, and the number of algorithm detection times is reduced.

Description

technical field [0001] The invention relates to the technical field of biomedical signal processing, in particular to a method and system for detecting the start and end points of P waves and T waves in a multi-lead electrocardiogram. Background technique [0002] The development of biomedical signal processing technology has profoundly changed the modern medical diagnosis technology. The existing ECG signal acquisition and detection technology has been partially applied in the fields of heart disease diagnosis and health monitoring. There are also a large number of ECG acquisition and analysis in the market. equipment; however, existing ECG acquisition and analysis equipment still has certain limitations. [0003] Electrocardiogram acquisition and analysis equipment refers to medical electronic equipment that can automatically record the bioelectrical signals (also known as ECG signals) generated by myocardial excitation during heart activity, and partially mark and analyze...

AI Technical Summary

Problems solved by technology

[0005] The present invention mainly solves the problem that the index parameters obtained by the electrocardiogram are not sufficient at present, and provides a method and system for detecting the start and end points of P waves and T waves in multi-lead electrocardiogram data, and realizes the detection of P waves and T waves. Extraction of important relevant indicators

Images