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Electrical analog model of arterial compliance during reactive hyperemia

Goldoozian, L. S ; Sharif University of Technology | 2011

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  1. Type of Document: Article
  2. DOI: 10.1109/MECBME.2011.5752062
  3. Publisher: 2011
  4. Abstract:
  5. Flow mediated dilation (FMD) measurement using ultrasound imaging (FMD-US) has been established as a standard method for assessing the endothelial function. Recently, a less skilled-operator demanding method has been proposed based on the photoplethysmogram (PPG) changes during reactive hyperemia. It was shown that the amplitude of the PPG pulse (FMD-PPG) changed in a quite similar manner to that of the artery diameter in the method of the FMD-US i.e. increases following releasing the cuff and then gradually returns to baseline. In this study PPG changes following reactive hyperaemia were modelled using time-varying passive electrical elements (R, L and C). The output of the electric analog model matched relatively well (fitness of 82.47%) the PPG-AC signal
  6. Keywords:
  7. Analog models ; Arterial compliance ; Electrical analog models ; Electrical elements ; Endothelial function ; Flow mediated dilation ; Photoplethysmogram ; Photoplethysmography ; Reactive hyperemia ; Standard method ; Time varying ; Ultrasound imaging ; Biomedical engineering ; Regulatory compliance
  8. Source: 2011 1st Middle East Conference on Biomedical Engineering, MECBME 2011, 21 February 2011 through 24 February 2011, Sharjah ; 2011 , Pages 49-53 ; 9781424470006 (ISBN)
  9. URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5752062