A review on wearable photoplethysmography sensors and their potential future applications in health care
By D. Castañeda, Aibhlin Esparza, M. Ghamari, C. Soltanpur, H. Nazeran. International Journal of Biosensors & Bioelectronics, 2018
912 citations recorded by the source corpus.
Photoplethysmography (PPG) is an uncomplicated and inexpensive optical measurement method that is often used for heart rate monitoring purposes. PPG is a non-invasive technology that uses a light source and a photodetector at the surface of skin to measure the volumetric variations of blood circulation. Recently, there has been much interest from numerous researchers around the globe to extract further valuable information from the PPG signal in addition to heart rate estimation and pulse oxymetry readings. PPG signal’s second derivative wave contains important health-related information. Thus, analysis of this waveform can help researchers and clinicians to evaluate various cardiovascular-related diseases such as atherosclerosis and arterial stiffness. Moreover, investigating the second derivative wave of PPG signal can also assist in early detection and diagnosis of various cardiovascular illnesses that may possibly appear later in life. For early recognition and analysis of such illnesses, continuous and real-time monitoring is an important approach that has been enabled by the latest technological advances in sensor technology and wireless communications. The aim of this article is to briefly consider some of the current developments and challenges of wearable PPG-based monitoring technologies and then to discuss some of the potential applications of this technology in clinical settings.
Subfields: Biomedical Engineering, Cardiology and Cardiovascular Medicine, Surgery
View Paper: https://www.semanticscholar.org/paper/72f1a9690decc6b4c153f25d7c10b1d5daffb04b
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In Biomedical Engineering
In Cardiology and Cardiovascular Medicine
Citations in the corpus
- Review on Wearable Technology Sensors Used in Consumer Sport Applications (2019, background): “The latter is the most common form presently and relies on MEMS for accuracy but still works on principles based on mechanical pedometers.”
- Investigating sources of inaccuracy in wearable optical heart rate sensors (2020, background): “Another suspected measurement error in wrist-worn devices is motion artifact, which is typically caused by displacement of the PPG sensor over the skin, changes in skin deformation, blood flow dynamics, and ambient temperature.(33,34) Motion artifacts may manifest as missing or false beats which res”