AUTHOR=Song Di , Liu Mengmeng , Dong Yinghui , Hong Shaofu , Chen Ming , Du Yigang , Li Shuangshuang , Xu Jinfeng , Gao Wenjing , Dong Fajin 

TITLE=Investigation on the differences of hemodynamics in normal common carotid, subclavian, and common femoral arteries using the vector flow technique

JOURNAL=Frontiers in Cardiovascular Medicine

VOLUME=Volume 9 - 2022

YEAR=2022

URL=https://www.frontiersin.org/journals/cardiovascular-medicine/articles/10.3389/fcvm.2022.956023

DOI=10.3389/fcvm.2022.956023

ISSN=2297-055X

ABSTRACT=Objectives: To investigate the feasibility of the vector flow imaging (V Flow) technique to measure peripheral arterial hemodynamic parameters, including wall shear stress (WSS) and turbulence index (Tur) in healthy adults, and compare the results in different arteries.
Methods: Fifty-two healthy adult volunteers were recruited in this study. The maximum and mean values of WSS, and the Tur values at early-systole, mid-systole, late-systole, and early diastole for total 156 normal peripheral arteries (common carotid arteries (CCA), subclavian arteries (SCA), and common femoral arteries (CFA)) were assessed using V Flow technique.
Results: The mean WSS values for CCA, SCA, and CFA were (1.66 ± 0.68) Pa, (0.62 ± 0.30) Pa, and (0.56 ± 0.27) Pa, respectively. Among CCA, SCA, and CFA, the mean WSS value was statistically significant (P < 0.01) except the difference between the mean WSS in SCA and CFA (P = 0.45). The mean Tur values for CCA, SCA, and CFA were (0.46 ± 1.09%), (20.7 ± 9.06%), and (24.63 ±17.66%), respectively, and the difference in mean Tur values for the three arteries was statistically significant (P < 0.01) except the difference between the mean Tur values in SCA and CFA (P = 0.52). The mean Tur values had a negative correlation with the mean WSS, the correlation coefficient is -0.69 (P < 0.05).
Conclusions: V Flow technique is a simple, practical, and feasible quantitative imaging approach for assessing WSS and Tur in peripheral arteries. It has the potential to be a useful tool for evaluating atherosclerotic plaques in peripheral arteries. The results provide a new quantitative foundation for future investigations into diverse arterial hemodynamic parameters.
Keywords: vector flow imaging (V Flow), ultrasound, common carotid arteries (CCA), subclavian arteries (SCA), common femoral arteries (CFA), wall shear stress (WSS), turbulence (Tur)