Song Di, Liu Mengmeng, Dong Yinghui, Hong Shaofu, Chen Ming, Du Yigang, Li Shuangshuang, Xu Jinfeng, Gao Wenjing, Dong Fajin
Department of Ultrasound, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, China.
Shenzhen Mindray Bio-Medical Electronics Co., Ltd., Shenzhen, Guangdong, China.
Front Cardiovasc Med. 2022 Nov 17;9:956023. doi: 10.3389/fcvm.2022.956023. eCollection 2022.
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.
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 the V Flow technique.
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. The mean Tur values for CCA, SCA, and CFA were (0.46 ± 1.09%), (20.7 ± 9.06%), and (24.63 ± 17.66%), respectively. The CCA and SCA, as well as the CCA and CFA, showed statistically significant differences in the mean WSS and the mean Tur ( < 0.01). The mean Tur values had a negative correlation with the mean WSS; the correlation coefficient between log(Tur) and WSS is -0.69 ( < 0.05).
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.
探讨矢量血流成像（V Flow）技术测量健康成年人外周动脉血流动力学参数（包括壁面切应力（WSS）和湍流指数（Tur））的可行性，并比较不同动脉的测量结果。
本研究招募了52名健康成年志愿者。使用V Flow技术评估了156条正常外周动脉（颈总动脉（CCA）、锁骨下动脉（SCA）和股总动脉（CFA））的WSS最大值和平均值，以及收缩早期、收缩中期、收缩晚期和舒张早期的Tur值。
CCA、SCA和CFA的平均WSS值分别为（1.66±0.68）Pa、（0.62±0.30）Pa和（0.56±0.27）Pa。CCA、SCA和CFA的平均Tur值分别为（0.46±1.09）%、（20.7±9.06）%和（24.63±17.66）%。CCA与SCA之间以及CCA与CFA之间的平均WSS和平均Tur差异具有统计学意义（<0.01）。平均Tur值与平均WSS呈负相关；log（Tur）与WSS之间的相关系数为-0.69（<0.05）。
V Flow技术是一种用于评估外周动脉WSS和Tur的简单、实用且可行的定量成像方法。它有可能成为评估外周动脉粥样硬化斑块的有用工具。研究结果为未来对外周动脉血流动力学参数的研究提供了新的定量基础。
