短暂性脑缺血发作的颈动脉B型超声断层扫描的研究

Study on carotid artery B-mode ultrasonographic tomographic scanning in patients with transient ischemic attack.

本文对62例短暂性脑缺血发作(TIA)患者的颈总动脉、颈总动脉分叉部及颈内动脉起始段做了颈动脉 B 型超声断层扫描(B-mode)检查,观察指标为动脉壁的病变性质,动脉管腔面积及直径狭窄的百分比。结果发现患者颈动脉颅外段动脉粥样硬化性病变较健康人明显广泛、严重,但无一例动脉粥样硬化病变致血管管径狭窄大于50%。

In this study,the common carotid artery,the bifurcation of the common carotid artery and the starting segment of internal carotid artery in 62 TIA patients were de- tected by B-mode ultrasonographic tomographic scanning.The results showed the patients carotid extracranial segment atherosclerotie lesions in this group were more extensive and se- rious than that in the healthy persons.But none of these lesions lead to more than 50% stenosis of vessel diameter.