Artery Research

Volume 7, Issue 3-4, September 2013, Pages 159 - 159

P6.18 CAROTID-FEMORAL PULSE WAVE VELOCITY ESTIMATED BY AN ULTRASOUND SYSTEM

Authors
M. Collette1, 3, C. Morizzo2, M. Kozakova2, 4, C. Palombo2, G. Leftheriotis3
1Centre de recherche du groupe ESAIP, Saint Barthélemy d’Anjou, France
2University of Pisa - Department of Internal Medicine, Pisa, Italy
3UMR CNRS 6214/INSERM 771 - CHU d’Angers, Angers, France
4Esaote SpA, Genova, Italy
Available Online 11 November 2013.
DOI
10.1016/j.artres.2013.10.199How to use a DOI?
Abstract

To date, regional aortic stiffness can be evaluated by the reference tonometric technique via the pulse wave velocity (PWV) measured in two points: the carotid and the femoral arteries. Based on a similar intersecting tangent algorithm, we have developed a new method for the determination of carotid-femoral PWV using a high-resolution echo tracking ultrasound system. Herein, PWV can be computed from the measurement of the transit time between the foot of the carotid diameter waveform and the foot of the femoral diameter waveform. The study was carried out on 50 consecutive patients at rest (29 men, mean age 30 ± 18 yrs) recruited on the occasion of a vascular screening for atherosclerosis. Carotid-femoral PWV was determined by a trained operator using a tonometric technique, (PWVpp, PulsePen, Italy), and an echotracking ultrasound system, (PWVus, e-tracking Alpha 10, Aloka, Japan). Relationship between PWVpp and PWVus was evaluated by linear regression. A Pearson’s correlation coefficient of r=0.95 was found between both variables (95% confidence interval 0.90–0.99; P<0.0001; PWVus= 0,91*PWVpp+0.44). The Bland–Altman plot comparing PWVpp and PWVus showed a systematic offset of −0.07 m.s-1 with a limit of agreement from −1,33 to 1,19 m.s-1. Our results show an excellent and significant correlation between both techniques which confirms that ultrasound system can provide a reliable estimate of the regional aortic stiffness like the tonometric technique does. Additional studies are now needed to show the simplicity of the measurement using ultrasound system while maintaining reliability even in overweight patients.

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Journal
Artery Research
Volume-Issue
7 - 3-4
Pages
159 - 159
Publication Date
2013/11/11
ISSN (Online)
1876-4401
ISSN (Print)
1872-9312
DOI
10.1016/j.artres.2013.10.199How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - JOUR
AU  - M. Collette
AU  - C. Morizzo
AU  - M. Kozakova
AU  - C. Palombo
AU  - G. Leftheriotis
PY  - 2013
DA  - 2013/11/11
TI  - P6.18 CAROTID-FEMORAL PULSE WAVE VELOCITY ESTIMATED BY AN ULTRASOUND SYSTEM
JO  - Artery Research
SP  - 159
EP  - 159
VL  - 7
IS  - 3-4
SN  - 1876-4401
UR  - https://doi.org/10.1016/j.artres.2013.10.199
DO  - 10.1016/j.artres.2013.10.199
ID  - Collette2013
ER  -