Evaluation of middle cerebral artery flow changes in healthy adults before and after carotid artery compression test by transcranial Doppler ultrasound
10.3760/cma.j.issn.1671-8925.2017.09.002
- VernacularTitle:TCD对健康成人压颈试验后大脑中动脉血流变化的评估
- Author:
Wei HUANG
1
;
Zhenyu YANG
;
Ping LUO
;
Lijiang RUAN
Author Information
1. 518102,深圳市宝安区中心医院超声医学科
- Keywords:
Ultrasonography,Doppler,transcranial;
Carotid compression test;
Middle cerebral artery
- From:
Chinese Journal of Neuromedicine
2017;16(9):871-875
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the middle cerebral artery (MCA) blood flow changes in healthy adults before and after carotid artery compression test by transcranial Doppler ultrasound (TCD).Methods Ninety-nine normal healthy adults,including 62 male and 37 female,were chosen in our study;they were divided into young group (＜40 years,n=35) and elderly group (＞40 years,n=64).The differences of peak level of MCA systolic blood flow velocity (Vp),mean blood flow velocity (Vm) and end diastolic blood flow velocity (Vd),and their compensation rates before and after oppression of the ipsilateral carotid artery were compared between patients of different ages and gender by TCD.Results The Vp,Vm and Vd,and the Vm and Vd compensation rates in the young group before and after oppression were significantly higher than those in the elderly group (PP＜0.05).The Vp,Vm and Vd,and their compensation rates before and after oppression showed no significant differences between male and female subjects (P＞0.05).Conclusion TCD can evaluate the effect of MCA blood flow on the collateral artery after compression carotid artery test;the compensatory effect of Vm and Vd in the young group is significantly higher than that in the elderly group.
