School of Electronic, Electrical and Systems Engineering, Loughborough University, Loughborough Leicestershire LE11 3TU, UK.
J Healthc Eng. 2013;4(4):505-28. doi: 10.1260/2040-2295.4.4.505.
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.
本文提出了基于光电容积脉搏波描记术（PPG）的光生理（OP）建模及其在心血管评估技术中的应用。将现有的接触式测量技术，即脉搏血氧仪探头，与下一代非接触式和成像式实现方式，即非接触式反射和基于相机的 PPG 进行了比较。有效生理监测技术的进一步发展依赖于新型 OP 建模方法，这可以更好地为传感硬件和适用的信号处理过程的设计和开发提供信息。借助有限元光学模拟，正在对 PPG 的光生理建模进行基础研究，以开发用于实际生物医学系统的工程解决方案。本文综述了两项 OP 模型的研究成果，这些成果在传输模式脉搏血氧仪探头的设计方面取得了重大进展，并为心血管性能的解释提出了三维血液灌注映射方法。
