Electrocardiosignal construction method based on pulse wave signals

A technology of electrocardiogram signal and construction method, which is applied in the field of medical and physiological signal detection and analysis, and can solve the problems that the portability of the electrocardiogram detection instrument is not very helpful, the pulse wave signal constructs the electrocardiogram signal, and cannot be processed in real time.

Active Publication Date: 2015-06-17
DALIAN UNIV OF TECH
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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

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  • Electrocardiosignal construction method based on pulse wave signals
  • Electrocardiosignal construction method based on pulse wave signals
  • Electrocardiosignal construction method based on pulse wave signals

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[0028] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention and accompanying drawings are further described in detail below:

[0029] The method of using pulse wave signal to construct ECG signal, the overall block diagram of the system is as follows figure 1 shown. The method can be divided into three steps: signal preprocessing, waveform fitting and signal building model. Among them, the signal preprocessing part is used to remove noise interference from the detected PPG signal and segment it by period, the waveform fitting part is used to obtain the characteristic parameters of the signal, and the function of the signal construction model is to construct the ECG signal corresponding to the PPG. Specific steps are as follows:

[0030] Step A. Perform preprocessing on the pulse wave signals and electrocardiographic signals of 150 cycles acquired synchronously. It mainly includes ...

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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...

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Application Information

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IPC IPC(8): A61B5/0402A61B5/02
CPCA61B5/02A61B5/7203A61B5/7264A61B5/316A61B5/318
Inventor 邱天爽马济通
Owner DALIAN UNIV OF TECH
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