了解光敏血压计信号的生理传输机制:全面综述。

IF 2.3 4区 医学 Q3 BIOPHYSICS Physiological measurement Pub Date : 2024-08-27 DOI:10.1088/1361-6579/ad6be4
Kai Li, Jiuai Sun
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引用次数: 0

摘要

作为一种检测血容量变化和得出反映健康状况的重要生理参数的非侵入式方法,光电血压计(PPG)已被广泛采用,这主要归功于它的可及性、成本效益和非侵入性。因此,围绕这项技术在日常生活和临床应用方面开展了广泛的研究。有趣的是,尽管在各种应用中对 PPG 信号的基本机制存在着相互矛盾的解释,但迄今为止尚未对这一关键问题进行过系统的研究。这种认识上的差距阻碍了 PPG 技术的充分应用,并破坏了其在众多应用中的准确性和可靠性。在全面回顾 PPG 的基本原理和技术进步的基础上,本文初步将 PPG 信号的来源归结为物理和生理传输过程的结合。此外,本文还综合了三种不同的模型,概述了相关的生理传输过程,并根据理论基础、经验证据和制约因素对每种模型进行了严格审查。最终目的是形成一个基本框架,以便更好地理解 PPG 信号产生的生理传输过程,并促进开发更可靠的生理信号检测技术。
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Understanding the physiological transmission mechanisms of photoplethysmography signals: a comprehensive review.

Objective. The widespread adoption of Photoplethysmography (PPG) as a non-invasive method for detecting blood volume variations and deriving vital physiological parameters reflecting health status has surged, primarily due to its accessibility, cost-effectiveness, and non-intrusive nature. This has led to extensive research around this technique in both daily life and clinical applications. Interestingly, despite the existence of contradictory explanations of the underlying mechanism of PPG signals across various applications, a systematic investigation into this crucial matter has not been conducted thus far. This gap in understanding hinders the full exploitation of PPG technology and undermines its accuracy and reliability in numerous applications.Approach. Building upon a comprehensive review of the fundamental principles and technological advancements in PPG, this paper initially attributes the origin of PPG signals to a combination of physical and physiological transmission processes. Furthermore, three distinct models outlining the concerned physiological transmission processes are synthesized, with each model undergoing critical examination based on theoretical underpinnings, empirical evidence, and constraints.Significance. The ultimate objective is to form a fundamental framework for a better understanding of physiological transmission processes in PPG signal generation and to facilitate the development of more reliable technologies for detecting physiological signals.

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来源期刊
Physiological measurement
Physiological measurement 生物-工程:生物医学
CiteScore
5.50
自引率
9.40%
发文量
124
审稿时长
3 months
期刊介绍: Physiological Measurement publishes papers about the quantitative assessment and visualization of physiological function in clinical research and practice, with an emphasis on the development of new methods of measurement and their validation. Papers are published on topics including: applied physiology in illness and health electrical bioimpedance, optical and acoustic measurement techniques advanced methods of time series and other data analysis biomedical and clinical engineering in-patient and ambulatory monitoring point-of-care technologies novel clinical measurements of cardiovascular, neurological, and musculoskeletal systems. measurements in molecular, cellular and organ physiology and electrophysiology physiological modeling and simulation novel biomedical sensors, instruments, devices and systems measurement standards and guidelines.
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