期刊
MEASUREMENT
卷 218, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.measurement.2023.113150
关键词
Photoplethysmography (PPG); Optical sensors; Heart Rate (HR); Sources of inaccuracy; Motion artifacts; Standardization
Wearable monitoring systems are expected to shift healthcare out of inpatient settings. Photoplethysmography (PPG) is integrated into wrist-worn commercial products, offering advantages in cost and size. However, PPG-based devices are influenced by various factors, hindering objective characterization. Lack of standardization for data collection and processing limits the full potential of this technology. This review aims to summarize influencing parameters of PPG and propose guidelines for standardization.
Healthcare is expected to increasingly shift care out of inpatient settings thanks to wearable monitoring systems. Photoplethysmography (PPG) is an optical technique already integrated into wrist-worn commercial products which presents significant advantages in terms of cost and dimensions. PPG-based devices, despite their ability to detect multiple cardiovascular parameters, are affected by several influencing conditions that depend both on technological or environmental variables, and on intra-and inter-subject variability that influences the whole measurement chain and reliability, hindering an objective characterization of PPG devices. Plus, the lack of standardization for data collection and processing leads to the lack of generalizability and reproducibility of results, preventing the full exploitation of the potential prognostic capacity of this technology. Thus, this review aims not only to summarize the main influencing parameters of PPG technology, which should be addressed when testing the sensor, but also to suggest tentative guidelines for a possible future standardization initiative.
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