分析光电显微镜的混沌成分及其与血液动力学参数的关联
Xiaoman Xing1,2, Wen-Fei Dong2, Renjie Xiao3
1School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Sciences and Technology of China, Suzhou 215163, China.
Entropy (Basel, Switzerland)
|December 23, 2023
概括
光聚光显微镜 (PPG) 信号中的动态模式揭示了心血管健康的洞察力. 在PPG中分析混乱组件可以增强对可穿戴技术应用中的血液动力学的理解.
科学领域:
- 生物医学工程 生物医学工程
- 身体生理学 身体生理学
- 心血管研究研究心血管研究
背景情况:
- 可穿戴技术与信号不稳定性作斗争,限制了它们的使用.
- 了解光斑血学 (PPG) 信号动态是评估心血管健康的关键.
- 血压和心脏输出等血液动力学条件是关键的健康指标.
研究的目的:
- 研究PPG信号中的动态模式与心血管健康之间的联系.
- 探索PPG中的混乱组件与血液动力学参数之间的关系.
- 评估PPG复杂度测量对现实世界可穿戴应用的潜力.
主要方法:
- 从公共数据库中收集了401个多式联运记录.
- 使用不规则重新采样自光谱分析 (IRASA) 来量化混乱组件.
- 测量了PPG信号的碎形维度 (FD) 和,并将它们与血液动力学数据 (BP,CO,C,R) 相对应.
主要成果:
- 增加PPG中的混乱成分与手术患者的血管度相关.
- 较高的心力输出波动强化了PPG复杂度测量和血液动力学之间的相关性.
- 健康的受试者表现出更混乱的组件和PPG复杂性和血液动力学之间的更强的相关性.
- 因果分析表明,血液动力学波动显著影响FD变化.
结论:
- PPG信号中的混乱模式对于评估心血管健康至关重要,特别是在不稳定的血液动力学方面.
- 动态PPG分析提供了从静态到动态评估的转变,改善可穿戴技术的实用性.
- 洞察力支持克服可穿戴技术的挑战,并增强现实世界的应用.
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