Investigating the physiological mechanisms of the photoplethysmogram features for blood pressure estimation.

Physiological Measurement
Wan-Hua LinFei Chen

Abstract

Photoplethysmogram (PPG) signals have been widely used to estimate blood pressure (BP) cufflessly and continuously. A number of different PPG features have been proposed and extracted from PPG signals with the aim of accurately estimating BP. However, the underlying physiological mechanisms of PPG-based BP estimation still remain unclear, particularly those corresponding to various PPG features. In this study, the physiological mechanisms of PPG features for BP estimation were investigated, which may provide further insight. Experiments with cold stimuli and an exercise trial were designed to change the total peripheral vascular resistance (TPR) and cardiac output (CO), respectively. Instantaneous BP and continuous PPG signals from 12 healthy subjects were recorded throughout the experiments. A total of 65 PPG features were extracted from the original, the first derivative, and the second derivative waves of PPG. The significance of the change of PPG features in the cold stimuli phase and in the early exercise recovery period was compared with that in the baseline phase. Intensity-specific PPG features changed significantly (p < 0.05) in the cold stimuli phase compared with the baseline phase, demonstrating that they were TPR-c...Continue Reading

References

Jan 1, 1995·IEEE Transactions on Bio-medical Engineering·C LiC Tai
May 8, 2008·Physiological Measurement·Jung Soo KimKwang Suk Park
Aug 1, 2012·Current Cardiology Reviews·Mohamed Elgendi
Oct 11, 2013·Conference Proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society·Hayato FukushimaKoji Oguri
Apr 12, 2014·Australasian Physical & Engineering Sciences in Medicine·Yanjun LiJinzhong Song
Jun 10, 2015·IEEE Transactions on Bio-medical Engineering·Ramakrishna MukkamalaSurvi Kyal
Sep 29, 2015·IEEE Transactions on Bio-medical Engineering·Xiao-Rong DingHon Ki Tsang
Jun 21, 2016·IEEE Transactions on Bio-medical Engineering·Mohammad KachueeMahdi Shabany
May 4, 2017·IEEE Journal of Biomedical and Health Informatics·Fen MiaoYe Li
Jan 18, 2020·Conference Proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society·Wan-Hua LinGuanglin Li

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Citations

Nov 30, 2021·Physiological Measurement·John AllenMohamed Elgendi

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