中文摘要：

目的探讨经颅彩色多普勒超声（TCD）联合CT血管重建（CTA）在诊断锁骨下动脉盗血综合征（SSS）中的临床价值。方法选取自2012年4月至2015年4月哈尔滨市第二医院神经内科采用TCD联合CTA观察的62例SSS患者,分析两者联合在SSS的诊断价值。结果本组62例SSS患者中,多发性动脉硬化52例,大动脉炎8例,其他病因2例。其中,锁骨下动脉狭窄64条,平均管径为1.0~3.7 mm;闭塞7条。完全性盗血18例（29.0%）,部分性盗血44例（71.0%）。结论 TCD联合CTA不仅可以观察盗血的程度和途径,还可以明确狭窄的病因及程度,具有微创、经济、简便等特点,两者结合更能准确的对SSS做出诊断,为临床早期的诊断和治疗提供更可靠的依据。

英文摘要：

Objective To explore the clinical value of transcranial Doppler ultrasonography（ TCD） combined with CT angiography（ CTA） in the diagnosis of subclavian steal syndrome（ SSS）. Methods By observing the phenomenon and results of 62 SSS patients with TCD and CTA received in the Second Hospital of Harbin from April 2012 to April 2015,the diagnostic value of them in SSS was analyzed. Results Of all 62 patients,52 cases were caused by atherosclerosis,8 cases by aortoarteritis,and 2 cases by other causes. Totally 64 subclavian stenosis arteries had an average lumen diameter of 1. 0-3. 7 mm,and occlusion of subclavian occurred in 7 arteries. Complete blood steal occurred in 18 cases（ 29. 0%） and partial blood steal in 44 cases（ 71. 0%）. Conclusion TCD combined with CTA can not only observe the degree and pathways of steal phenomenon,but also can indetify the etiopathogensis and severity of stenosis. This approach is less invasive,economic and convenient,so they can more accurate the diagnosis of SSS,and will provide reliable evidence for early clinical diagnosis and treatment.