Advances in Cuffless Continuous Blood Pressure Monitoring Technology Based on PPG Signals

Objective. To review the progress of research on photoplethysmography- (PPG-) based cuffless continuous blood pressure monitoring technologies and prospect the challenges that need to be addressed in the future. Methods. Using Web of Science and PubMed as search engines, the literature on cuffless c...

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Bibliographic Details
Published in:BioMed research international 2022-10, Vol.2022, p.1-16
Main Authors: Qin, Caijie, Wang, Xiaohua, Xu, Guangjun, Ma, Xibo
Format: Article
Language:English
Subjects:
Algorithms
Artificial intelligence
Blood pressure
Blood vessels
Coronary vessels
Datasets
Deep learning
Hypertension
Intensive care
Linear equations
Machine learning
Methods
Monitoring
Physiology
Review
Search engines
Sensors
Skin
Wave velocity
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Summary:Objective. To review the progress of research on photoplethysmography- (PPG-) based cuffless continuous blood pressure monitoring technologies and prospect the challenges that need to be addressed in the future. Methods. Using Web of Science and PubMed as search engines, the literature on cuffless continuous blood pressure studies using PPG signals in the recent five years were searched. Results. Based on the retrieved literature, this paper describes the available open datasets, commonly used signal preprocessing methods, and model evaluation criteria. Early researches employed multisite PPG signals to calculate pulse wave velocity or time and predicted blood pressure by a simple linear equation. Later, extensive researches were dedicated to mine the features of PPG signals related to blood pressure and regressed blood pressure by machine learning models. Most recently, many researches have emerged to experiment with complex deep learning models for blood pressure prediction with the raw PPG signal as input. Conclusion. This paper summarized the methods in the retrieved literature, provided insight into the artificial intelligence algorithms employed in the literature, and concluded with a discussion of the challenges and opportunities for the development of cuffless continuous blood pressure monitoring technologies.
ISSN:2314-6133
2314-6141
DOI:10.1155/2022/8094351