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Research on coupling relationship between ECG and PW signal in the cardiovascular system

Fangfang Jiang, Shaoxiu Song, Jiabin Cheng

    Technology and Health Care : Official Journal of the European Society for Engineering and Medicine
    |September 28, 2015
    PubMed

    Insights

    This study introduces a new method to analyze the coupling relationship between Electrocardiogram (ECG) and Pulse Wave (PW) signals. Findings show weaker PW synchronization with ECG in older adults, aligning with clinical observations.

    Area of Science:

    • Biomedical Engineering
    • Cardiovascular Physiology
    • Signal Processing

    Background:

    • Cardiovascular disease (CVD) is a leading global cause of death.
    • Understanding cardiovascular system function is critical for disease management.

    Purpose of the Study:

    • To propose parameters for characterizing the coupling relationship between ECG and PW signals.
    • To further explore the functional information derived from cardiovascular system signals.

    Main Methods:

    • Synchronous detection of ECG and PW signal peaks using Empirical Mode Decomposition (EMD).
    • Analysis of signal intervals across different age groups.
    • Calculation of Euclidean distance to quantify the coupling relationship.

    Main Results:

    • Experimental results from 20 subjects indicated higher coupling parameters in the older group compared to the younger group.
    • Weaker synchronization and consistency of PW following ECG were observed in older adults.
    • Results align with established clinical understanding of age-related cardiovascular changes.

    Conclusions:

    • The proposed coupling relationship parameters offer a quantifiable representation of cardiovascular system dynamics.
    • This approach provides insights into age-related alterations in cardiovascular signal coupling.
    Abstract

    Keywords:
    ECGEMDPWcardiovascular systemcoupling relationship

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