Volumetric index for non-invasive vascular characterization based on the finger pulse response to flow mediated dilation

Edmond Zahedi, Rosmina Jaafar, Mohd Alauddin Mohd Ali

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, a new index is defined for the characterization of the vascular response to a predefined stimulus using the finger photoplethysmogram (PPG) as input. To this end, two different wavelengths (red and infrared) were employed. To show the feasibility of this concept, PPG signals were acquired from two subjects: a healthy and a diabetic with obesity. A normalization procedure was implemented so as to eliminate the effects of confounding factors such as tissue thickness and skin pigmentation. To elucidate a valid response from the vascular bed, a standard stimulus leading to reactive hyperemia was applied to the subjects. Obtained results show a clear difference between the response of the subjects' PPG after normalization. Moreover, a significant difference is observed between the red and infrared channels. We submit that this proof of concept work may lay down the foundations of affordable and operator-independent techniques for non-invasive vascular characterization.

Original languageEnglish
Title of host publication2014 IEEE International Conference on Smart Instrumentation, Measurement and Applications, ICSIMA 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479980413
DOIs
Publication statusPublished - 23 Feb 2015
Event2014 IEEE International Conference on Smart Instrumentation, Measurement and Applications, ICSIMA 2014 - Kuala Lumpur, Malaysia
Duration: 25 Nov 2014 → …

Other

Other2014 IEEE International Conference on Smart Instrumentation, Measurement and Applications, ICSIMA 2014
CountryMalaysia
CityKuala Lumpur
Period25/11/14 → …

Fingerprint

Infrared radiation
stimuli
pulses
obesity
Skin
Tissue
Wavelength
beds
operators
wavelengths

Keywords

  • Flow-mediated dilation
  • Non-invasive
  • Normalization
  • Optical biosignal
  • Vascular characterization

ASJC Scopus subject areas

  • Artificial Intelligence
  • Instrumentation

Cite this

Zahedi, E., Jaafar, R., & Ali, M. A. M. (2015). Volumetric index for non-invasive vascular characterization based on the finger pulse response to flow mediated dilation. In 2014 IEEE International Conference on Smart Instrumentation, Measurement and Applications, ICSIMA 2014 [7047430] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICSIMA.2014.7047430

Volumetric index for non-invasive vascular characterization based on the finger pulse response to flow mediated dilation. / Zahedi, Edmond; Jaafar, Rosmina; Ali, Mohd Alauddin Mohd.

2014 IEEE International Conference on Smart Instrumentation, Measurement and Applications, ICSIMA 2014. Institute of Electrical and Electronics Engineers Inc., 2015. 7047430.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Zahedi, E, Jaafar, R & Ali, MAM 2015, Volumetric index for non-invasive vascular characterization based on the finger pulse response to flow mediated dilation. in 2014 IEEE International Conference on Smart Instrumentation, Measurement and Applications, ICSIMA 2014., 7047430, Institute of Electrical and Electronics Engineers Inc., 2014 IEEE International Conference on Smart Instrumentation, Measurement and Applications, ICSIMA 2014, Kuala Lumpur, Malaysia, 25/11/14. https://doi.org/10.1109/ICSIMA.2014.7047430
Zahedi E, Jaafar R, Ali MAM. Volumetric index for non-invasive vascular characterization based on the finger pulse response to flow mediated dilation. In 2014 IEEE International Conference on Smart Instrumentation, Measurement and Applications, ICSIMA 2014. Institute of Electrical and Electronics Engineers Inc. 2015. 7047430 https://doi.org/10.1109/ICSIMA.2014.7047430
Zahedi, Edmond ; Jaafar, Rosmina ; Ali, Mohd Alauddin Mohd. / Volumetric index for non-invasive vascular characterization based on the finger pulse response to flow mediated dilation. 2014 IEEE International Conference on Smart Instrumentation, Measurement and Applications, ICSIMA 2014. Institute of Electrical and Electronics Engineers Inc., 2015.
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