摘要
目的:应用经颅多普勒超声(TCD)对颅内动脉狭窄≥70%或闭塞的颅内血管血流动力学改变进行分析。方法:43例CT血管造影(CTA)证实为颈内动脉重度狭窄或闭塞的患者,用TCD对颅内血流动力学改变进行评价。结果:严重颈动脉狭窄患侧大脑中动脉(MCA)的平均流速和搏动指数均低于对照组的正常人,颈动脉闭塞患者最低(p<0.05)。侧支循环开放情况,前交通动脉开放占58.14%,后交通动脉开放占48.84%,颈内外动脉开放占44.19%。结论:严重颈内动脉狭窄或闭塞后同侧半球血流量下降,侧支循环开放。TCD与CTA从不同角度为本病提供全面客观依据。
Objective： To analyse the changes of intracranial hemodynamics in patients with intracranial artery stenosis ≥70% or occlusion by TCD examination. Method：We evaluated the changes of 43 cases intracranial hemodynamics examined with TCD, who were diagnosed as internal carotid artery stenosis or occlusion with CTA. Result： The mean velocity and pulsatility index was lower in patients with severe carotid artery stenosis in MCA than those in normal group. While it was lowest in patients with carotid allery occlusion （ P 〈 0.05 ）. The opening of anterior and posterior communicating artery , internal and outernal carotid artery was 58.14% ,48.84% and 44.19% respectively in collateral circulation. Conclusion：The examination of TCD and CTA proved the relation of collateral circulation with decrease of blood volume in the same side with severe internal carotid artery stenosis or occlusion.
出处
《河北医学》
CAS
2008年第11期1293-1296,共4页
Hebei Medicine
