在测量地点和采集模式的寒冷压力影响下进行光电吸收
Vincent Fleischhauer1, Jan Bruhn1, Stefan Rasche2
1Laboratory for Advanced Measurements and Biomedical Data Analysis, Faculty of Information Technology, FH Dortmund, Dortmund, Germany.
Frontiers in physiology
|June 16, 2023
概括
在不同的设置中,光电脉冲扫描 (PPG) 信号与冷压器测试 (CPT) 发生变化. 指的PPG显示出最强烈的反应,突出显示了记录地点对于准确的生理分析的重要性.
科学领域:
- 生理测量测量生理测量
- 生物医学工程 生物医学工程
- 医学诊断 医学诊断 医学诊断
背景情况:
- 摄影电磁镜 (PPG) 是一种多功能技术,用于评估生理状态.
- PPG信号形态受到特定于记录设置的解剖学,生理学和计量学因素的影响.
- 了解这些取决于设置的差异对于推进PPG分析和开发新型诊断方法至关重要.
研究的目的:
- 系统地调查冷压器测试 (CPT) 对PPG信号形态在不同的记录设置的影响.
- 为了比较接触PPG (手指,耳) 和成像PPG (iPPG,脸) 对疼痛刺激的反应.
- 识别PPG特征的设置特定变化及其与血压和心率变化之间的关系.
主要方法:
- 在CPT期间从39名健康志愿者收集了PPG实验数据.
- 联系PPG (手指,耳) 和成像PPG (面部) 记录的比较.
- 分析了PPG的四个共同的形态特征,与CPT相比,在三个间隔内进行了分析.
- 使用重复测量ANOVA,配对t测试和Hedges的*g*进行统计分析和效果大小量化.
主要成果:
- 在所有记录设置中,CPT诱导了血压,心率和所有分析的PPG特征的显著变化.
- 在手指,耳叶和面部 (iPPG) 记录之间观察到PPG特征响应的显著差异.
- 指的PPG表现出最强的反应;半幅的脉冲宽度显示了手指和头PPG之间的反向行为;iPPG的特征比接触PPG更快地恢复到基线.
结论:
- 记录设置显著影响PPG信号形态和对CPT等生理刺激的反应.
- 各种设置之间PPG特征的差异需要仔细考虑,以便准确的解释和应用.
- 了解这些取决于设置的变化可以为未来基于PPG的诊断技术的进步铺平道路.
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