Follow-up observation of carotid artery stent implantation by color Doppler ultrasound combined with TCD
10.7687/J.ISSN1003-8868.2017.02.086
- VernacularTitle:颈部彩超联合TCD对颈动脉支架置人的随访观察
- Author:
Xuhui DAI
;
Xiaomei YU
;
Manli SU
;
Fang MEI
;
Yuanfeng LIU
;
Siwen CHEN
;
Hongli ZHOU
;
Jiajun TU
- Keywords:
carotid artery stenosis;
stent;
color Doppler flow imaging;
transcranial Doppler ultrasound;
follow-up
- From:
Chinese Medical Equipment Journal
2017;38(2):86-88
- CountryChina
- Language:Chinese
-
Abstract:
Objective To apply color Doppler flow imaging (CDFI) and transcranial Doppler (TCD) to the follow-up observation of the changes of cervical vessel,intracranial hemodynamics and cerebrovascular reserve capacity (CVR) of the patients after carotid artery stent implantation.Methods Totally 96 patients with carotid artery stent implantation underwent CDFI and TCD examinations,and the changes of hemodynamics were compared before and 1 month,6 months,1 a and 2 a after implantation.Results The values of peak systolic velocity (PSV) and resistance index (RI) at the areas of carotid stenosis were lower significantly than those before implantation,while the values of PSV,pulsatility index (PI) and CVR of the middle cerebral artery were obviously higher than those before implantation (P＜0.05).There were no significant differences between the cervical and intracranial hemodynamics indexes 1 month,6 months,1 a and 2 a after treatment.Two-year follow-up found 4 cases of restenoses after implantation,and the rate for restenosis was 4.2％.Conclusion Carotid artery stent implantation improves significantly cervical and intracranial blood supply as well as CVR of the carotid stenosis patient,and CDFI combined with TCD can be used for the accurate evaluation of the efficacy and postoperative follow-up of carotid artery stent implantation.
