彩色多普勒及经颅多普勒超声结合诊断锁骨下动脉盗血综合征的意义

Diagnostic Significance of CD and TCD in Subclavian Steal Syndrome

目的探讨锁骨下动脉盗血综合征经颅多普勒及彩色多普勒超声表现,分析锁骨下动脉盗血综合征(SSS)的原因、血液动力学、频谱特点、狭窄程度与盗血的关系等问题,评价超声诊断价值。方法彩色多普勒二维超声常规显示颈动脉、椎动脉的内径及内膜情况,对椎动脉疑有盗血频谱的患者再结合应用彩色多普勒检测锁骨下动脉出现血流方向逆转,基底动脉呈双向血流的特定盗血频谱图形。15例SSS患者中,动脉硬化及大动脉炎所致各为13例和2例,锁骨下动脉或无名动脉狭窄或闭锁,可引起部分性及完全性盗血。椎动脉峰值流速健侧明显高于患侧。结论SSS最常见病因为动脉硬化和大动脉炎。其完全性与部分性盗血,与血管狭窄程度有关。彩色多普勒与经颅多普勒相结合能更准确地对SSS做出诊断。

Objective To discuss the CD and TCD manifestations and to analyze the reasons, hemodynamics, frequency, stenosis and relation of steal synrome of SSS. The diagnostic value was assessed. Methods The inner diameter, endotheliam of caroid and vertibral artery, the blood flow of subclavical artery and basal artery were studied with CD and TCD. Results There were 13 cases caused by arteriosclerosis and 2 cases caused by aorto- artefitis. The subclavieal artery or anonyma artery were caused partial or complete occlusion. The peak flow speed in healthy side was higher than that in involved side. Conclusion The common reasons of SSS were arteriosclerosis and arteritis. The complete or partial steal blood might related with bloddd vessel stenosis. The combination of CD and TCD might obtain diagnosis.