超声评价颈动脉狭窄的颅内侧支循环建立情况  

To Evaluate the Intracerebral Correlation Formation with CDFI in Carotid Stenosis Patients

作　　者：唐力[1] 王晓光[1] 吴立文[1] 冯赫林[1] 马春艳[1] 任卫东[1] 

机构地区：[1]中国医科大学第一临床学院心功能科,辽宁沈阳110001

出　　处：《中国医学影像技术》2002年第3期229-230,共2页Chinese Journal of Medical Imaging Technology

摘　　要：目的　了解颈内动脉狭窄时 :①颈内 外动脉间吻合支循环建立情况 ;②侧支循环建立时 ,颈总动脉的血流动力学特点。方法　用彩色多普勒血流成像 ,选择一侧颈内动脉完全或 99%以上阻塞的、病程≥ 0 .5年的 5 6例病人 ,根据对侧颈内动脉狭窄程度分为四组。检查颈内动脉完全阻塞侧的眼动脉血流方向 ,确定侧支循环建立情况 ,然后测双侧颈总动脉的血流动力学指标。结果　①对侧颈内动脉狭窄程度在 95 %以上时 ,颈内 外动脉吻合支开放率 85 .7% (12 / 14 ) ;②侧支循环开放时 ,双侧颈总动脉的收缩期峰速 (PSV)和舒张期末速度 (EDV)均增高。结论　①双侧颈内动脉严重狭窄时 ,颈内 外动脉间的吻合支开放 ,保证脑组织的血供 ;②CDFI检查眼动脉和颈总动脉的血流动力学情况 。Objective To know the condition of correlation formation between internal carotid artery (ICA) and external carotid artery (ECA) during ICA stenosis, and to know the hemodynamical characteristics of common carotid artery (CCA), when the collateral circulation was established. Methods Fifty six patients were selected, with which ICA blocked over 99% of one side and the courses of disease were more than half of a year. The cases were divided into 4 groups according to the stenosis degree of the opposite ICA. The examination parameters included ophthal artery direction of the the same side and bilateral CCA hemodynamics. Results ① When the opposite ICA stenosis was more than 95%, the ECA ICA anastomosis open rate was more than 85.7%. ②When the collateral circulation was formed, both PSV and EDV on bilateral CCA will increased. Conclusion ① When bilateral ICA is severely stenosis, ECA ICA anastomosis will be formed to maintain the cerebral blood supply. ②The examination of hemodynamics of ophthal artery and CCA with CDFI can determine the intracerebral anastomosis condition easily and conventiently.

关 键 词：彩色多普勒血流成像 颈动脉狭窄 血流动力学 脑血管疾病 颅内侧支循环 

分 类 号：R543.4[医药卫生—心血管疾病] R445.1[医药卫生—内科学]