Common carotid artery diameter, blood flow velocity and wave intensity responses at rest and during exercise in young healthy humans: a reproducibility study

Article


Pomella, N., Wilhelm, E., Kolyva, C., González-Alonso, J., Rakobowchuk, M. and Khir, A. 2017. Common carotid artery diameter, blood flow velocity and wave intensity responses at rest and during exercise in young healthy humans: a reproducibility study. Ultrasound in Medicine & Biology. 43 (5), pp. 943-957. https://doi.org/10.1016/j.ultrasmedbio.2016.12.018
TypeArticle
TitleCommon carotid artery diameter, blood flow velocity and wave intensity responses at rest and during exercise in young healthy humans: a reproducibility study
AuthorsPomella, N., Wilhelm, E., Kolyva, C., González-Alonso, J., Rakobowchuk, M. and Khir, A.
Abstract

The aim of this study was to assess the reproducibility of non-invasive, ultrasound-derived wave intensity (WI) in humans at the common carotid artery. Common carotid artery diameter and blood velocity of 12 healthy young participants were recorded at rest and during mild cycling, to assess peak diameter, change in diameter, peak velocity, change in velocity, time derivatives, non-invasive wave speed and WI. Diameter, velocity and WI parameters were fairly reproducible. Diameter variables exhibited higher reproducibility than corresponding velocity variables (intra-class correlation coefficient [ICC] = 0.79 vs. 0.73) and lower dispersion (coefficient of variation [CV] = 5% vs. 9%). Wave speed had fair reproducibility (ICC = 0.6, CV = 16%). WI energy variables exhibited higher reproducibility than corresponding peaks (ICC = 0.78 vs. 0.74) and lower dispersion (CV = 16% vs. 18%). The majority of variables had higher ICCs and lower CVs during exercise. We conclude that non-invasive WI analysis is reliable both at rest and during exercise.

Research GroupBiophysics and Bioengineering group
LanguageEnglish
PublisherElsevier
JournalUltrasound in Medicine & Biology
ISSN0301-5629
Publication dates
Online22 Feb 2017
Print01 May 2017
Publication process dates
Deposited05 Apr 2018
Accepted31 Dec 2016
Output statusPublished
Publisher's version
License
Digital Object Identifier (DOI)https://doi.org/10.1016/j.ultrasmedbio.2016.12.018
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