On the analysis of fingertip photoplethysmogram signals.
On the analysis of fingertip photoplethysmogram signals.
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DOI：
10.2174/157340312801215782
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发表时间：
2012-02
影响因子：
1.9
通讯作者：
Elgendi M
中科院分区：
文献类型：
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作者：
Elgendi M
光电体积描记术（PPG）用于使用红外光来估计皮肤血流。由于PPG作为一种无创、廉价、方便的诊断工具的优势，来自不同科学领域的研究人员对PPG越来越感兴趣。传统上，它测量氧饱和度，血压，心输出量，并用于评估自主神经功能。此外，PPG是一种很有前途的技术，用于早期筛查各种动脉粥样硬化病变，并可能有助于定期GP评估，但仍然缺乏对不同特征诊断价值的全面了解。最近的研究强调了PPG波形信号中嵌入的潜在信息，并且其可能的应用值得进一步关注，而不仅仅是脉搏血氧饱和度和心率计算。因此，本概述讨论了添加到PPG信号中的不同类型的伪影、PPG波形的特征性特征以及用于评估诊断的现有指标。
Photoplethysmography (PPG) is used to estimate the skin blood flow using infrared light. Researchers from different domains of science have become increasingly interested in PPG because of its advantages as non-invasive, inexpensive, and convenient diagnostic tool. Traditionally, it measures the oxygen saturation, blood pressure, cardiac output, and for assessing autonomic functions. Moreover, PPG is a promising technique for early screening of various atherosclerotic pathologies and could be helpful for regular GP-assessment but a full understanding of the diagnostic value of the different features is still lacking. Recent studies emphasise the potential information embedded in the PPG waveform signal and it deserves further attention for its possible applications beyond pulse oximetry and heart-rate calculation. Therefore, this overview discusses different types of artifact added to PPG signal, characteristic features of PPG waveform, and existing indexes to evaluate for diagnoses.