Study on variety of blood flow velocity of common carotid artery during systole
- VernacularTitle:颈总动脉收缩期峰值血流速度变异的探讨
- Author:
Cai ZHAO
;
Ping FANG
;
Xiaoping NIU
;
Zonggui WU
;
- Publication Type:Journal Article
- Keywords:
carotid artery,common;
blood flow velocity;
atherosclerosis
- From:
Academic Journal of Second Military Medical University
1999;0(12):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To explore the blood velocity variety(BFV) of common carotid artery. Methods: BFV was detected with HDI5000 colour doppler ultrasound in 28 healthy volunteers to observe whether there was bifurcation among BFV of each section (about 6.0 cm) of common carotid artery(CCA). CCA was divided into 5 sections (1 cm) from its beginning to bifurcation. BFV was detected in each section. Influences of age, heart rate, blood pressure on BFV were observed. Results: BFV decreased gradually from its beginning to its divergence, the average decreasing value of each section BFV was 5.37 cm/s, and 4.24 cm/s, the difference between maximal and minimum BFV was 17.35 cm/s and 14.32 cm/s in right, left CCA respectively. Maximal BFV increased with age, blood pressure increased and heart rate decreased. But the change of each section BFV was not influenced by age, blood pressure and heart rate. Conclusion: The results indicate that each section BFV is not consistent in CCA, deviation is more obvious when stenosis is valued by internal carotid artery(ICA) BFV/CCA BFV, it should be valued with maximal BFV of ICA.
