Objective To analyse the association between the clinical performance and degree of steal phenomena with transcranial Doppler (TCD) and digital substract angiography (DSA) in patients with subclavian artery (Sub-A) occlusive disease.

• 目的 应用经颅多普勒超声 (TCD)和数字减影血管造影 (DSA)分析锁骨下动脉 (Sub A)起始段严重狭窄或闭塞导致的锁骨下动脉盗血综合征 (SSS)的盗血程度和类型与椎基底动脉供血不足 (VBI)的关系。