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Measuring pulse wave velocity using ECG and photoplethysmography.

Authors
  • Liu, An-Bang1
  • Hsu, Po-Chun
  • Chen, Zong-Li
  • Wu, Hsien-Tsai
  • 1 Department of Electrical Engineering, National Dong Hwa University, Hualien, Taiwan. , (Taiwan)
Type
Published Article
Journal
Journal of medical systems
Publication Date
Oct 01, 2011
Volume
35
Issue
5
Pages
771–777
Identifiers
DOI: 10.1007/s10916-010-9469-0
PMID: 20703725
Source
Medline
License
Unknown

Abstract

Pulse wave velocity (PWV) is a useful method to assess arterial stiffness and predict mortality of atherosclerosis-related diseases. The progression of atherosclerosis is not homogeneous. There must be difference of PWV between sites by site. Therefore we designed a multi-channel instrument to measure PWV at different sites of the body simultaneously. We measured PWV at six different regions simultaneously. Thirty four healthy adults received the measurement. We found that PWVs were higher in the large vessels, by measuring from the heart to toes and heart to fingers as compared with the measurement from the heart to the earlobes (4.76 ± 0.46 m/s; 4.67 ± 0.41 m/s; 1.10 ± 0.16 m/s). The PWV of the left and right sides were the same. Although there were statistically significances, the correlation of PWV between foot and hand is better than those between ear and foot and between ear and hand. Herein we presented a novel and reliable measurement of PWV. The changes of PWV in different regions may be used in predicting disease processes such as stroke, coronary artery diseases and renal diseases, respectively.

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