Photoplethysmography in Cardiovascular Disfunction Detection: Signal Processing, Analysis, Implementation. A Review |
| B.T. Śmigielski, M.N. Chołuj, G. Cybulski
Faculty of Mechatronics, Institute of Metrology and Biomedical Engineering, Warsaw University of Technology, św. A. Boboli 8, 02-525 Warsaw, Poland |
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| Photoplethysmography is a non-invasive physical method used for monitoring arterial blood flow in the subject's body by measuring the amount of light absorbed or reflected by the pulsatile blood flow within the vessels. It is commonly used in wearable devices, primarily for pulse measurement. In ambulatory and clinical practice, it is implemented in pulse oximetry for the estimation of pulse and blood oxygen saturation levels. However, this method has the potential for a much broader range of measurements, such as detecting atrial fibrillation episodes. Innovative applications of this field continue to emerge in the analysis of the cardiovascular system, along with the implementation of new technological solutions aimed at analyzing and improving signal quality. Thus, we have decided to collect information on the current advancements in the field of photoplethysmography. Also, the aim of this mini-review was to bring closer non-obvious applications of photoplethysmography and its development prospects. |
DOI:10.12693/APhysPolA.146.600 topics: photoplethysmography, cardiovascular, signal analysis, signal processing |