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Updated: Jul 5, 2026
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A Magnetic Resonance Imaging Protocol for Stroke Onset Time Estimation in Permanent Cerebral Ischemia
Published on: September 16, 2017
[Recurrence plot analysis of HRV for brain ischemia and asphyxia]
Xiaoming Chen1, Yihong Qiu, Yisheng Zhu
1Department of Biomedical Engineering, Shanghai Jiaotong University, Shanghai 200030, China.
Summary
Heart rate variability (HRV) analysis using Recurrence Plotting reveals significant changes during asphyxia. This nonlinear method offers a new way to monitor brain injury by detecting variations in heart beat cycles.
Area of Science:
- Physiology
- Nonlinear dynamics
- Biomedical engineering
Context:
- Heart rate variability (HRV) reflects autonomic nervous system balance.
- HRV exhibits nonlinear characteristics.
- Asphyxia insults can lead to brain injury.
Purpose:
- To investigate the application of Recurrence Plot (RP) method for analyzing HRV.
- To assess changes in HRV during asphyxia insult using nonlinear dynamics.
- To explore RP-derived indices for monitoring brain asphyxia injury.
Summary:
- The study applied the Recurrence Plot (RP) method, a nonlinear analysis technique, to heart rate variability (HRV).
- Significant variations in RP structures and quantitative indices (L-Mean, L-Entr) were observed during asphyxia insult compared to normal conditions.
- These findings suggest RP analysis of HRV can detect physiological changes associated with brain asphyxia.
Impact:
- Introduces a novel nonlinear method for analyzing HRV in the context of brain injury.
- Provides quantitative indices for monitoring asphyxia-induced neurological damage.
- Enhances understanding of autonomic nervous system response to asphyxia through nonlinear dynamics.
