Three-Dimensional Poincare Plot Analysis for Heart Rate Variability

For the limitation of Poincare plot analysis, the three-dimensional Poincare plot analysis is proposed to analyze the heart rate variability. Firstly, the Poincare plot and some classic indicators are briefly discussed. Because the standard analysis method inherently ignores the embedding temporal information of the RR interval time series, the temporal variation of the time series cannot be adequately reflected. Secondly, for the limitation of the Poincare plot analysis, a three-dimensional Poincare plot is presented, which can fully describe the temporal and spatial characteristics of the RR interval time series. Thirdly, we propose the local distribution entropy, which can quantify the temporal and spatial patterns of the scatter points in novel space. Finally, PhysioNet/PhysioBank is applied in this study. The experimental results demonstrate the effectiveness of the three-dimensional Poincare plot analysis.

Automated summary

This paper proposes a three-dimensional Poincare plot analysis method for heart rate variability. By adding embedded temporal information, the temporal variation of the time series can be adequately reflected. The experimental results demonstrate the effectiveness of this method.