目的观察多层螺旋CT评价颈动 脉狭窄行介入术治疗的临床疗效，为临 床后期治疗提供参考。方法 选取2013年 1月-2014年3月期间医院门诊收入的25例 颈动脉狭窄患者作为研究对象，应用螺 旋CT在介入治疗前后对患者颈动脉的血 流动力学参数进行评价和比较。结果 本 组患者介入治疗前后狭窄处长度、轻度 及重度狭窄、血压(舒张压、收缩压)比 较，P＜0.05，差异有统计学意义。结论 多层螺旋CT可准确对颈动脉狭窄处长度 及狭窄程度等进行监测，有利于临床判 定介入术疗效，值得临床应用并广泛推 广。

Objective To observe multi-slice CT,to evaluate clinical efficacy of intervention operation applied on the carotid artery stenosis,and to provide reference for clinical treatment later. Methods Twenty five patients with carotid artery stenosis admitted by the Outpatient Department of the Hospital during the period from January,2013 to March,2014 were selected as research candidates,and hemodynamic parameters of carotid arteries of patients by the application of spiral CT before and after interventional therapy were evaluated and compared. Results The comparisons in stenosis length,mild and severe stenosis,blood pressure (diastolic and systolic blood pressure) of patients in this group before and after interventional therapy satisfied P＜0.05,and the differences were statistically significant. Conclusion Multi-slice CT can monitor the length and the degree of stenosis of carotid stenosis in,and it is helpful for clinical judgement on the efficacy,being worthy of clinical application and wide promotion.