The feasibility of applying photoplethysmography technology for measuring central arterial stiffness-a pilot study
Conference: BIBE 2018 - International Conference on Biological Information and Biomedical Engineering
06/06/2018 - 06/08/2018 at Shanghai, China
Proceedings: BIBE 2018
Pages: 4Language: englishTyp: PDF
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Authors:
Li, Yanlei; Fang, Weikai; Lu, Zeyuan; Chu, Yannan (Anhui Province Key Laboratory of Medical Physics and Technology, Center of Medical Physics and Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui, China)
Zhang, Zhanying (Anhui Province Key Laboratory of Medical Physics and Technology, Center of Medical Physics and Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences & University of Science and Technology of China, Hefei, Anhui, China)
Chen, Haiyan; Yu, Dongsheng; Yang, Zhe; Cai, Yi; Ji, Yufeng; Xu, Chidong (Anhui Province Key Laboratory of Medical Physics and Technology, Center of Medical Physics and Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences & Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, Anhui, China)
Ni, Tun; Wang, Hongzhi (Anhui Province Key Laboratory of Medical Physics and Technology, Center of Medical Physics and Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui, China & Cancer Hospital, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, China)
Abstract:
We aimed to develop a novel two-channel approach allowing estimation of vascular blood flow resistance by analysis of time shifts between the photoplethysmography pulses detected at the common carotid and femoral artery. Two photodiode sensors were positioned on the carotid and femoral artery. Pulse waves were recorded continuously for 15 seconds and the difference in pulse wave transit time between the carotid artery and femoral artery was calculated. The carotid femoral pulse transit time was 71.2ms ([IQR] 64.6, 85.7) and pulse transit time using the photoplethysmography method correlated significantly with the reference method (SphygmoCor(r)) (r=0.85; p =0.049). Our preliminary results showed that the photoplethysmography technology is acceptable to patients and is applicable as point of care testing for general population screening.