中国物理B ›› 2023, Vol. 32 ›› Issue (10): 100501-100501.doi: 10.1088/1674-1056/acb422

• • 上一篇    下一篇

Detection of healthy and pathological heartbeat dynamics in ECG signals using multivariate recurrence networks with multiple scale factors

Lu Ma(马璐)1,2, Meihui Chen(陈梅辉)3, Aijun He(何爱军)4, Deqiang Cheng(程德强)1, and Xiaodong Yang(杨小冬)3,†   

  1. 1 School of Information and Control Engineering, China University of Mining and Technology, Xuzhou 221116, China;
    2 Suzhou Vocational and Technical College, Suzhou 234000, China;
    3 School of Computer Science and Technology, China University of Mining and Technology, Xuzhou 221116, China;
    4 School of Electronic Science and Engineering, Nanjing University, Nanjing 210023, China
  • 收稿日期:2022-09-14 修回日期:2023-01-04 接受日期:2023-01-18 出版日期:2023-09-21 发布日期:2023-09-27
  • 通讯作者: Xiaodong Yang E-mail:xyang@cumt.edu.cn
  • 基金资助:
    Project supported by the Xuzhou Key Research and Development Program (Social Development) (Grant No. KC21304) and the National Natural Science Foundation of China (Grant No. 61876186).

Detection of healthy and pathological heartbeat dynamics in ECG signals using multivariate recurrence networks with multiple scale factors

Lu Ma(马璐)1,2, Meihui Chen(陈梅辉)3, Aijun He(何爱军)4, Deqiang Cheng(程德强)1, and Xiaodong Yang(杨小冬)3,†   

  1. 1 School of Information and Control Engineering, China University of Mining and Technology, Xuzhou 221116, China;
    2 Suzhou Vocational and Technical College, Suzhou 234000, China;
    3 School of Computer Science and Technology, China University of Mining and Technology, Xuzhou 221116, China;
    4 School of Electronic Science and Engineering, Nanjing University, Nanjing 210023, China
  • Received:2022-09-14 Revised:2023-01-04 Accepted:2023-01-18 Online:2023-09-21 Published:2023-09-27
  • Contact: Xiaodong Yang E-mail:xyang@cumt.edu.cn
  • Supported by:
    Project supported by the Xuzhou Key Research and Development Program (Social Development) (Grant No. KC21304) and the National Natural Science Foundation of China (Grant No. 61876186).

摘要: The electrocardiogram (ECG) is one of the physiological signals applied in medical clinics to determine health status. The physiological complexity of the cardiac system is related to age, disease, etc. For the investigation of the effects of age and cardiovascular disease on the cardiac system, we then construct multivariate recurrence networks with multiple scale factors from multivariate time series. We propose a new concept of cross-clustering coefficient entropy to construct a weighted network, and calculate the average weighted path length and the graph energy of the weighted network to quantitatively probe the topological properties. The obtained results suggest that these two network measures show distinct changes between different subjects. This is because, with aging or cardiovascular disease, a reduction in the conductivity or structural changes in the myocardium of the heart contributes to a reduction in the complexity of the cardiac system. Consequently, the complexity of the cardiac system is reduced. After that, the support vector machine (SVM) classifier is adopted to evaluate the performance of the proposed approach. Accuracy of 94.1% and 95.58% between healthy and myocardial infarction is achieved on two datasets. Therefore, this method can be adopted for the development of a noninvasive and low-cost clinical prognostic system to identify heart-related diseases and detect hidden state changes in the cardiac system.

关键词: electrocardiogram signals, multivariate recurrence networks, cross-clustering coefficient entropy, multiscale analysis

Abstract: The electrocardiogram (ECG) is one of the physiological signals applied in medical clinics to determine health status. The physiological complexity of the cardiac system is related to age, disease, etc. For the investigation of the effects of age and cardiovascular disease on the cardiac system, we then construct multivariate recurrence networks with multiple scale factors from multivariate time series. We propose a new concept of cross-clustering coefficient entropy to construct a weighted network, and calculate the average weighted path length and the graph energy of the weighted network to quantitatively probe the topological properties. The obtained results suggest that these two network measures show distinct changes between different subjects. This is because, with aging or cardiovascular disease, a reduction in the conductivity or structural changes in the myocardium of the heart contributes to a reduction in the complexity of the cardiac system. Consequently, the complexity of the cardiac system is reduced. After that, the support vector machine (SVM) classifier is adopted to evaluate the performance of the proposed approach. Accuracy of 94.1% and 95.58% between healthy and myocardial infarction is achieved on two datasets. Therefore, this method can be adopted for the development of a noninvasive and low-cost clinical prognostic system to identify heart-related diseases and detect hidden state changes in the cardiac system.

Key words: electrocardiogram signals, multivariate recurrence networks, cross-clustering coefficient entropy, multiscale analysis

中图分类号:  (Computational methods in statistical physics and nonlinear dynamics)

  • 05.10.-a
87.18.-h (Biological complexity) 87.85.Ng (Biological signal processing) 87.19.X- (Diseases)