摘要
目的:研究脑缺血时眼动脉的血流动力学改变特征。方法:使用GE Logiq7型彩色超声诊断仪,选择经颅多普勒超声技术(TCD)检查确诊的单侧脑缺血病例50例,采用自体对侧对照方法,应用彩色超声多谱勒血流成像(CDFI)技术,观测脑缺血时眼动脉血流动力学参数。结果:发现眼动脉血流符合颅内动脉的血流动力学特点,频谱波形呈低阻力型。当颈内动脉狭窄引起脑缺血时,眼动脉与脑动脉发生相似的血流动力学改变,眼动脉的平均血流速度(Vmean)、最大血流速度(Vmax)、阻力指数(RI)、搏动指数(PI)较前均明显降低,而最小血流速度(Vmin)不发生明显改变。结论:根据眼动脉血流动力学改变情况,可以间接反映脑血流动力学的变化,作为判断脑缺血疾病一种新的诊断方法。
Objective to study the changble character of the ophthalmie arterial hemodynamics In cerebral Ischemia. Methods By means of American GELogiq7 color untrasound equipment and choose 50 patients that were diagnosed to one side cerebral ischemia by measurement TCD, then adopt the way of one side comparing with self-body’s another side and make use of CDFI, the parameter of ophthalmic arterial hemodynamics was abserved. Results It was found that the blood flow of ophthomic artery accord with the character of enc...
出处
《实用医技杂志》
2008年第17期2184-2186,共3页
Journal of Practical Medical Techniques
关键词
彩色多谱勒血流成像
脑缺血
眼动脉
颈内动脉
血流动力学
Color Doppler flow imaging
Cerebral ischemia
Ophthalmic artery
Internal carotid artery
Hemodynamics
