Extracranial and intracranial hemodynamic changes before and after carotid artery stenting
- VernacularTitle:颅外段颈动脉狭窄支架植入术前后颅内外血流动力学变化的研究
- Author:
Yi MU
;
Baozhen ZHAO
;
Biao LIU
;
Xiuying SUN
- Publication Type:Journal Article
- Keywords:
Ultrasonography,Doppler,transcranial;
Carotid stenosis;
Stents
- From:Chinese Journal of Ultrasonography
2003;0(09):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the extracranial and intracranial arterial hemodynamic changes before and after carotid artery stenting(CAS). Methods Thirty-eight patients with extracranial internal carotid arterial(EICA) stenosis were selected.Before and after CAS, the vessel diameter,the peak systolic velocity(PSV) in bilateral EICA and the PSV, pulsatility index(PI) in bilateral middle cerebral artery(MCA),ophthalmic artery(OA) were measured respectively by color Doppler flow imaging(CDFI) and transcranial color-coded duplex sonography(TCCD).Results Compared with pre-CAS,the diameter of ipsilateral EICA showed obviously increase post-CAS(P 0.05 ).The established collateral circulation were closed. Conclusions The extracranial and intracranial arterial hemodynamic data measured by CDFI and TCCD are valuable in evaluation of CAS.CAS is an effective and safe treatment for carotid stenosis,and the long time follow-up remains to be.
