在可穿戴场景中,通过单通道PPG进行个性化连续血压跟踪
IEEE journal of biomedical and health informatics
|March 3, 2025
概括
这项研究引入了一种新的管道,用于使用光电显微镜 (PPG) 信号的持续血压 (BP) 监测. 该系统为可穿戴设备提供准确,个性化的BP跟踪,克服了常见的信号质量和校准挑战.
科学领域:
- 生物医学工程 生物医学工程
- 可穿戴技术可穿戴技术
- 生理监测 生理监测
背景情况:
- 人类生理状态的实时跟踪增强了个性化的医疗保健.
- 摄影电磁镜 (PPG) 是一种非侵入性方法,用于监测血液流动,血压 (BP) 和心血管状况.
- 通过PPG连续监测BP面临的挑战包括信号质量差,计算复杂性和可穿戴应用中的校准需求.
研究的目的:
- 为可穿戴设备开发个性化的连续BP跟踪管道.
- 解决基于PPG的BP监测方面的挑战,包括信号质量,计算负载和校准.
- 为了在各种现实场景中实现强大和长期的BP监测.
主要方法:
- 实现了自动PPG信号质量分级模块,以简化模型的安装.
- 引入了一个轻量级的BP预测模型 (SCI-GTCN) 以减少计算复杂性.
- 采用了适应性校准策略,以实现持续的BP监测性能.
主要成果:
- 该管道在134名受试者身上通过各种监测条件 (白天,夜晚,异常状态) 进行了验证.
- 在快速血压变化,昼夜节律波动和长期监测期间评估了表现.
- 达到0.99±7.91/0.36±5.43mmHg的平均误差±标准偏差 (ME±SD),符合AAMI标准.
结论:
- 拟议的方法显示出良好的稳定性和适用于持续BP监测的适用性.
- 该管道适合在可穿戴设备上部署,为医疗保健领域提供了有前途的解决方案.
- 该系统有效地解决了当前基于PPG的BP监测技术的关键局限性.
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