扩散透射光谱用于健康人群中脉率变化的超短时间测量
1Institute of Metrology and Biomedical Engineering, Faculty of Mechatronics, Warsaw University of Technology, Św. A. Boboli 8 St., Warsaw 02-525, Poland.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
|November 23, 2024
概括
扩散透射光谱 (DTS) 显示出对非侵入性脉冲率变化 (PRV) 测量有希望. 这种技术准确地捕捉了时间域PRV,对环境噪声有很强的抵抗力,并且与传统方法有很好的相关性.
科学领域:
- 生物医学工程 生物医学工程
- 非侵入性的血液动力学监测
- 生理信号分析 生理信号分析
背景情况:
- 多波长斑膜学 (MWPPG) 是一种用于血液动力学测量的新兴的非侵入性技术.
- 在MWPPG内部的光谱方法正在获得引力.
- 对于推进PPG应用来说,研究像扩散透射光谱 (DTS) 这样的新型配置至关重要.
研究的目的:
- 评估扩散透射光谱 (DTS) 用于脉冲率变化 (PRV) 测量的可行性.
- 评估DTS在量化超短PRV中的性能.
- 为了比较来自DTS的PRV参数与基于传统脉冲氧计的PPG的参数.
主要方法:
- 扩散透射光谱学 (DTS) 用于重建光电显微镜 (PPG) 信号.
- 脉冲率变化 (PRV) 分析,包括时间域和频域特征,在50秒的录音中进行.
- 来自DTS的PRV参数与使用相关性和Bland-Altman分析的黄金标准PPG传感器进行了比较.
主要成果:
- 对于平均间隔,SDNN和RMSSD的DTS衍生的PRV和参考PRV之间观察到强烈的相关性 (r > 0.90,p < 0.05).
- 布兰德-阿尔特曼图表显示了对时间域PRV参数的良好一致.
- 频域PRV参数显示出相当大的差异,而DTS测量表明与传统PPG相比,对环境噪声不敏感.
结论:
- 扩散透射光谱 (DTS) 是一种可行的方法,用于非侵入性PRV分析,特别是用于时间域指标.
- 与传统脉冲氧计相比,DTS在噪声弹性方面提供了潜在的优势.
- 使用DTS进行频域分析的进一步研究可能是有必要的.
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