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Journal of Biomedical Optics • Open Access

Digital image correlation for full-field time-resolved assessment of arterial stiffness
Author(s): Adriaan Campo; Joris A. Soons; Hilde Heuten; Guy Ennekens; Inge Goovaerts; Christiaan Vrints; Pascal Lava; Joris J. J. Dirckx

Paper Abstract

Pulse wave velocity (PWV) of the arterial system is a very important parameter to evaluate cardiovascular health. Currently, however, there is no golden standard for PWV measurement. Digital image correlation (DIC) was used for full-field time-resolved assessment of displacement, velocity, acceleration, and strains of the skin in the neck directly above the common carotid artery. By assessing these parameters, propagation of the pulse wave could be tracked, leading to a new method for PWV detection based on DIC. The method was tested on five healthy subjects. As a means of validation, PWV was measured with ultrasound (US) as well. Measured PWV values were between 3.68 and 5.19  m/s as measured with DIC and between 5.14 and 6.58  m/s as measured with US, with a maximum absolute difference of 2.78  m/s between the two methods. DIC measurements of the neck region can serve as a test base for determining a robust strategy for PWV detection, they can serve as reference for three-dimensional fluid–structure interaction models, or they may even evolve into a screening method of their own. Moreover, full-field, time-resolved DIC can be adapted for other applications in biomechanics.

Paper Details

Date Published: 9 January 2014
PDF: 11 pages
J. Biomed. Opt. 19(1) 016008 doi: 10.1117/1.JBO.19.1.016008
Published in: Journal of Biomedical Optics Volume 19, Issue 1
Show Author Affiliations
Adriaan Campo, Univ. Antwerpen (Belgium)
Joris A. Soons, Univ. Antwerpen (Belgium)
Hilde Heuten, Univ. Ziekenhuis Antwerpen (Belgium)
Guy Ennekens, Univ. Ziekenhuis Antwerpen (Belgium)
Inge Goovaerts, Univ. Ziekenhuis Antwerpen (Belgium)
Christiaan Vrints, Univ. Ziekenhuis Antwerpen (Belgium)
Pascal Lava, KaHo-St.Lieven (Belgium)
Joris J. J. Dirckx, Univ. Antwerpen (Belgium)


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