Correlation between hemodynamic change of extracranial cerebral vessels evaluated by ultrasound and intracranial arterial stenosis
10.3760/cma.j.issn.1004-4477.2016.06.008
- VernacularTitle:颅外颈动脉血流动力学改变的超声评估与颅内动脉狭窄的相关性研究
- Author:
Heng XUE
;
Jinrui WANG
- Publication Type:Journal Article
- Keywords:
Ultrasonography;
Carotid arteries;
Hemodynamics;
Intracranial arterial stenosis
- From:Chinese Journal of Ultrasonography
2016;25(6):491-495
- CountryChina
- Language:Chinese
-
Abstract:
Objective By analyzing the correlation between Doppler spectrum of extracranial cerebral vessels ECV and intracranial arterial stenosis IAS to identify the value of hemodynamic change of ECV in predicting IAS Methods One hundred and four patients with moderate to severe IAS or intracranial arterial occlusion were enrolled in the case group while 32 patients without obvious cerebrovascular disease in the same period were enrolled in the control group Ultrasound examinations of ECV were performed for all patients the hemodynamic parameters of bilateral common carotid artery CCA internal carotid artery ICA and vertebral artery VA were recorded and compared between case and control group Results Compared with control group the ECV of patients with IAS had lower velocity and higher resistance index RI Of all the parameters end diastolic velocity EDV of ICA and EDV of VA were most accurate in predicting IAS with best cut off value of 21 3 cm/s 9 6 cm/s and accuracy of 76 1 % 81 0% respectively Conclusions The ECV of IAS patients tend to have lower velocity and higher RI Analysis of hemodynamic parameters of ECV might be useful in predicting IAS.
