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目的探讨脑卒中筛查中彩色多普勒超声(CDFI)评价颈动脉狭窄及颈动脉支架置入术(PTAS)的疗效。方法 98例应用CDFI筛查诊断颈动脉狭窄患者,随机分为治疗组61例和对照组37例,并行数字减影血管造影(DSA)检查;治疗组行颈动脉血管内支架置入术,对照组接受药物保守治疗,术后1年应用CDFI对比两组患者血管病变变化情况。结果 CDFI和DSA对颈动脉狭窄的诊断差异无统计学意义(P>0.05)。1年后治疗组患者1例(1.6%)发生动脉再狭窄,对照组患者动脉血管狭窄程度加重(包括闭塞)23例(62%),颈动脉内支架置入术疗效确切。结论 CDFI能准确诊断颈动脉血管狭窄,客观评价血管内支架置入治疗对缺血性脑卒中二级预防疗效,CDFI可重复检查,是评价和随访颈动脉狭窄颈动脉支架术疗效的重要手段。
Objective To evaluate the value of color Doppler ultrasound (CDFI) in the evaluation of carotid stenosis and carotid artery stenting (PTAS) in stroke screening. Methods Ninety-eight patients with carotid artery stenosis were screened by CDFI and randomly divided into treatment group (n = 61) and control group (n = 37) with digital subtraction angiography (DSA). The treatment group received carotid artery stenting, Group received conservative treatment of drugs, 1 year after application of CDFI compared two groups of patients with vascular lesions. Results There was no significant difference in the diagnosis of carotid stenosis between CDFI and DSA (P> 0.05). One year after operation, arterial restenosis occurred in 1 patient (1.6%) in the treatment group, and 23 patients (62%) in the control group had severe arterial stenosis (including occlusion). The carotid artery stenting was effective. Conclusions CDFI can accurately diagnose carotid artery stenosis. Objectively evaluate the secondary prevention effect of intravascular stent implantation on ischemic stroke and CDFI repeatable examination. It is an important means to evaluate and follow-up the carotid artery stenting for carotid artery stenosis.