title: Opto-physiological modeling applied to photoplethysmographic cardiovascular assessment.
abstract: This paper presents opto-physiological (OP) modeling and its application in cardiovascular assessment techniques based on photoplethysmography (PPG). Existing contact point measurement techniques, i.e., pulse oximetry probes, are compared with the next generation non-contact and imaging implementations, i.e., non-contact reflection and camera-based PPG. The further development of effective physiological monitoring techniques relies on novel approaches to OP modeling that can better inform the design and development of sensing hardware and applicable signal processing procedures. With the help of finite-element optical simulation, fundamental research into OP modeling of photoplethysmography is being exploited towards the development of engineering solutions for practical biomedical systems. This paper reviews a body of research comprising two OP models that have led to significant progress in the design of transmission mode pulse oximetry probes, and approaches to 3D blood perfusion mapping for the interpretation of cardiovascular performance.
authors.affiliation: School of Electronic, Electrical and Systems Engineering, Loughborough University, Loughborough Leicestershire LE11 3TU, UK.
authors.forename: Sijung
authors.initials: S
authors.lastname: Hu
authors.forename: Vicente
authors.initials: V
authors.lastname: Azorin-Peris
authors.forename: Jia
authors.initials: J
authors.lastname: Zheng
mesh_terms: D006801:Humans; D007091:Image Processing, Computer-Assisted; D008955:Models, Cardiovascular; D009010:Monte Carlo Method; D010092:Oximetry / Q000379:methods*; D017156:Photoplethysmography / Q000379:methods*; D015203:Reproducibility of Results; D012815:Signal Processing, Computer-Assisted; D012879:Skin Physiological Phenomena
keywords: cardiovascular assessment; imaging photoplethysmography (iPPG); opto-physiological modeling; pulse oximetry; region of interest (ROI); signal and image processing