一个基于PPG的血压监测的新型形式因子
概括
这项研究引入了一种新的,不使用袖口的方法,用于使用光聚缩学 (PPG) 传感器持续监测血压 (BP). 这种新的方法实现了对缩和腹缩血压的监管限制内的准确性,为可穿戴健康跟踪铺平了道路.
科学领域:
- 生物医学工程 生物医学工程
- 心血管监测 心血管监测
- 可穿戴技术可穿戴技术
背景情况:
- 血压 (BP) 是一个关键的生命体征,但目前基于袖子的测量是离散的和侵入性的.
- 持续的,非侵入性血压监测对于健康跟踪和个性化医疗保健非常理想.
- 摄像力发电学 (PPG) 信号提供了估计血压相关的潜力,因为它们对动脉体积变化的敏感性.
研究的目的:
- 探索一种新的,两点仪器设置,用于连续的,无袖的血压估计.
- 评估使用PPG和脉冲波速度 (PWV) 进行BP监测的可行性.
- 评估拟议方法的准确性与标准袖口式BP测量相比.
主要方法:
- 一个新的设备同时记录了来自头部和手腕的PPG信号.
- 脉冲波速度 (PWV) 和其他波形特征从PPG信号中提取出来.
- 对有意改变血压的10名受试者进行前性测试,与参考袖口装置进行验证.
主要成果:
- 通用绝对血压模型在监管限制内实现了错误: -0.14 ± 7.3 mmHg对于缩血压 (SBP) 和 -0.21 ± 6.7 mmHg对于腹缩血压 (DBP).
- 在预测和基本真相SBP (r = 0.74,p < 0.001) 之间观察到很高的相关性.
- 对于DBP (r = 0.34,p < 0.001) 发现了中等相关性,表明了持续监测的潜力.
结论:
- 拟议的两点PPG传感器设置可以提取相关的BP相关特征.
- 这种新型的形状因子表明了连续无袖血压监测的潜力.
- 进一步的研究可能会导致用于主动心血管健康管理的先进可穿戴设备.
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