Electrocardiosignal construction method based on pulse wave signals

Abstract

The invention provides an electrocardiosignal construction method based on pulse wave signals. The method comprises the following steps: performing normalization processing of pulse wave signals and electrocardiosignals, which are segmented periodically, by means of scale transformation, fitting the pulse wave signals and the electrocardiosignals by adopting a cubic b-spline curve, and extracting characteristic parameters, transforming the characteristic parameters by a principal component analysis method to obtain the principal components of the signals; performing sample training of the principal components of the pulse wave signals and the electrocardiosignals by adopting a BP neural network to obtain model parameters, and constructing a forecasting model; and constructing electrocardiosignal parameters through the model by utilizing the pulse wave signals and the network model parameters. Experiments show that the method provided by the invention has favorable algorithm performance and constructed electrocardiosignals have small distortion. According to the method, the electrocardiosignals are constructed according to pulse waves through a portable waist type pulse detector, the use of chest leads are avoided, and the improvement in portability of an electrocardiograph is facilitated.

Description

technical field [0001] The invention relates to the technical field of medical and physiological signal detection and analysis, and relates to a method for constructing an electrocardiographic signal, in particular to a method for constructing an electrocardiographic signal by using synchronously collected pulse wave signals. Background technique [0002] Most ECG signals are acquired by chest leads, which is inconvenient and affects the portability of ECG monitors. If the pulse wave can be used to restore the ECG signal, the convenience of ECG signal detection will be significantly improved. At present, in the research on the relationship between the pulse wave and the ECG signal, the method of extracting the eigenvectors of the pulse wave signal and the ECG signal is mostly used, and the significance test is used to analyze the internal relationship between the pulse wave signal and the ECG signal sex. However, these methods only illustrate the correlation between the pu...

AI Technical Summary

Problems solved by technology

However, this method is only suitable for reconstructing the lost part of the ECG signal sequence, and cannot be used to construct ECG signals from pulse wave signals, nor can it be processed in real time

In addition, this method is highly dependent on ECG signals, requiring complete ECG signals in the front and rear segments of the lost part and only losing a small amount of ECG signals, which is of great help in improving the portability of ECG detection instruments. Big

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