Author | Jin, Jiahong | |
Author | Lu, Jun Qing | |
Author | Chen, Cheng | |
Author | Zhou, Ruihai | |
Author | Hu, Xin-Hua | |
Date Accessioned | 2023-08-16T15:49:17Z | |
Date Available | 2023-08-16T15:49:17Z | |
Date of Issue | 2022-11-10 | |
Identifier (Citation) | Jiahong Jin, Jun Qing Lu, Cheng Chen, Ruihai Zhou, Xin-Hua Hu, "Photoplethysmographic imaging and analysis of pulsatile pressure wave in palmar artery at 10 wavelengths," J. Biomed. Opt. 27(11) 116004 (10 November 2022) https://doi.org/10.1117/1.JBO.27.11.116004 | en_US |
Identifier (URI) | http://hdl.handle.net/10342/13111 | |
Description | CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 International License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI. | en_US |
Description | Significance
As a noncontact method, imaging photoplethysmography (iPPG) may provide a powerful tool to measure pulsatile pressure wave (PPW) in superficial arteries and extract biomarkers for monitoring of artery wall stiffness.
Aim
We intend to develop a approach for extraction of the very weak cardiac component from iPPG data by identifying locations of strong PPW signals with optimized illumination wavelength and determining pulse wave velocity (PWV).
Approach
Monochromatic in vivo iPPG datasets have been acquired from left hands to investigate various algorithms for retrieval of PPW signals, distribution maps and waveforms, and their dependence on arterial location and wavelength.
Results
A robust algorithm of pixelated independent component analysis (pICA) has been developed and combined with spatiotemporal filtering to retrieve PPW signals. Spatial distributions of PPW signals have been mapped in 10 wavelength bands from 445 to 940 nm and waveforms were analyzed at multiple locations near the palmar artery tree. At the wavelength of 850 nm selected for timing analysis, we determined PWV values from 12 healthy volunteers in a range of 0.5 to 5.8 m/s across the hand region from wrist to midpalm and fingertip. | en_US |
Sponsorship | ECU Open Access Publishing Support Fund | en_US |
Related URI | https://doi.org/10.1117/1.JBO.27.11.116004 | en_US |
Subject | Arteries | en_US |
Subject | Signal to noise ratio | en_US |
Subject | Photoplethysmography | en_US |
Subject | Tissues | en_US |
Subject | Algorithm development | en_US |
Subject | Skin | en_US |
Subject | Independent component analysis | en_US |
Title | Photoplethysmographic imaging and analysis of pulsatile pressure wave in palmar artery at 10 wavelengths | en_US |
Type | Article | en_US |
Identifier (DOI) | 10.1117/1.JBO.27.11.116004 | |
Journal Name | Journal of Biomedical Optics | en_US |
Journal Volume | 27 | en_US |
Journal Issue | 11 | en_US |