正常和早期狭窄时股总动脉血流的超声矢量绘图

T. Kulagina, E. Dutikova, V. A. Sandrikov, A. V. Gavrilenko, Al-Samsei Naim Nas
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引用次数: 0

摘要

假设决定内皮功能的壁剪应力(WSS)沿动脉床恒定不变。研究讨论了对健康人(13 名患者)和股动脉初期动脉粥样硬化患者(42 名患者)动脉系统中湍流和血流速度的评估。研究使用 V Flow 对股总动脉中的血流进行了量化,并以高帧率对血流进行了可视化。通过股动脉壁剪切率、速度曲线和振荡指数(OSI)对股动脉的结果进行了评估。结果表明,健康人和血管狭窄<30-35%的患者股动脉中的 WSSmean 平均值为 0.9±0.4 - 0.91±0.4 Pa,并无明显差异。初期动脉粥样硬化患者的股总动脉壁厚度为 0.9-1.1 毫米,健康患者为 0.8-0.9 毫米。通过 Kendall's Taub 非参数分析评估了各参数之间的相关性。结果显示,在健康人和初期动脉粥样硬化患者中,WSSmean 与血流速度(Vs)之间没有相关性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Ultrasound vector mapping of common femoral artery blood flow in normal and early-stage stenosis
It is assumed that the wall shear stress (WSS), which determines the function of the endothelium, is constant along the arterial bed. The assessment of turbulence, blood flow velocity in the arterial system in healthy (13 patients) and in patients with the initial form of atherosclerosis in the femoral artery (42 patients) was discussed. The study quantified blood flow in the common femoral artery using V Flow with visualization of blood flow with a high frame rate. The results obtained in the femoral arteries were evaluated by the wall shear rate, velocity profile and oscillation index (OSI). It was shown that the average value of WSSmean in the femoral artery in healthy and in patients with stenosis <30–35% is 0.9± 0.4 – 0.91±0.4 Pa and does not significantly differ. The wall thickness in the common femoral artery in patients with the initial form of atherosclerosis was 0.9–1.1 mm, and in healthy patients 0.8–0.9 mm. The correlation between the parameters was evaluated by nonparametric analysis of Kendall’s Taub. It was revealed that there is no correlation between WSSmean and blood flow velocity (Vs) in both healthy and patients with the initial form of atherosclerosis.
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