彩色多普勒超声检查对后循环短暂脑缺血发作的诊断价值

目的]探讨彩色多普勒超声对后循环短暂脑缺血发作(TIA)血管结构异常和血流动力学异常的诊断价值.方法]用10MHz探头探查颅外段椎动脉血管形态、内径、血流频谱及血流动力学变化.结果]后循环TIA组78例78.8％椎动脉异常,血管异常率54.6％,对照组30例椎动脉异常率3.3％.两组椎动脉内径及血流参数比较有显著性差异(P＜0.01).结论]彩色多普勒超声作为后循环TIA无创伤性血管结构异常和血流动力学异常的检查手段,具有直接、准确、方便,可重复性等优点,可以作为后循环TIA的诊断筛查手段.

Color Doppler ultrasound in the posterior circulation transient ischemic attack in the application

Objective] To evaluate color Doppler ultrasound of the posterior circulation transient ischemic attack （TIA） vascular abnormalities and hemodynamic abnormalities of diagnostic value. Methods] 10MHz probe exploration of extracranial vertebral artery morphology, diameter, blood flow and hemodynamic changes in the spectrum. Results] 78 cases of posterior circulation TIA group 78.8% of the vertebral artery abnormalities, vascular abnormalities rate 54.6% in the control group, 30 cases of vertebral artery abnormality rate of 3.3%. Two vertebral artery diameter and blood flow parameters had significant differences （P〈0.01）. Gonclusion] Color Doppler ultrasound as a posterior circulation TIA noninvasive vascular abnormalities and hemodynamic abnormalities screening tool, has a direct, accurate, easy repeatability, etc., can serve as a posterior circulation TIA diagnostic screening tool.