Velocity Vector Imaging to Assess Longitudinal Wall Motion of Adult Carotid Arteries.
J Ultrasound Med
; 40(6): 1195-1207, 2021 Jun.
Article
in En
| MEDLINE
| ID: mdl-32914417
ABSTRACT
OBJECTIVE:
We aimed to assess longitudinal wall motion of the common carotid artery (CCA) using velocity vector imaging (VVI).METHODS:
From October 2018 to July 2019, we prospectively performed VVI of 204 CCAs (102 adult volunteers, 57 men, 45 women) in young (n = 40, 20-44 y), mid-age (n = 30, 45-64 y), and senior (n = 32, ≥65 y) groups. VVI parameters of CCA included longitudinal motion pattern, motion parameters (strain, strain rate, displacement), and time-to-peak motion parameters (time-to-peak strain, time-to-peak strain rate, time-to-peak displacement). Statistical analyses included one-way ANOVA post-hoc testing to examine the difference in VVI parameters among the 3 age groups and in paired groups; unpaired t tests to examine the difference in VVI parameters between CCAs with and without atherosclerotic plaque, between hypertensive and normotensive subjects without atherosclerotic plaque; linear regression to analyze correlations of VVI parameters to age, carotid intima-media thickness; and intraclass correlation coefficient to test inter- and intra-observer reliability in performing VVI of the CCA.RESULTS:
Differences in VVI parameters and patterns among the 3 age groups, between hypertensive and normotensive, and CCAs with and without plaque were significant (p < .01). CCA motion- and time-to-peak motion parameters were correlated to age (R2 = 0.63-0.56) and carotid intima-media thickness (R2 = 0.29-0.22). CCA wall motion dyssynchrony was remarkable in seniors. The repeatability and reproducibility for performing carotid artery VVI were good (intraclass correlation coefficient > 0.85).CONCLUSIONS:
VVI is feasible to assess changes in longitudinal CCA wall mechanical properties and synchrony with aging, atherosclerosis, and hypertension.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Carotid Arteries
/
Carotid Intima-Media Thickness
Type of study:
Diagnostic_studies
Limits:
Female
/
Humans
/
Male
Language:
En
Journal:
J Ultrasound Med
Year:
2021
Type:
Article