CT血管造影与经颅多普勒超声对锁骨下动脉盗血综合征的诊断价值

Diagnostic value of CT angiography and transcranial Doppler ultrasound for subclavian steal syndrome

目的探讨CT血管造影(CTA)与经颅多普勒超声(TCD)对锁骨下动脉盗血综合征(SSS)的诊断价值。方法选取51例拟诊为SSS的患者,均行CTA、TCD检查及数字减影血管造影(DSA)检查。评价CTA与DSA诊断锁骨下动脉或无名动脉狭窄程度的一致性,分析TCD诊断的SSS分期与DSA诊断锁骨下动脉或无名动脉狭窄程度的相关性。结果 51例患者中,有46例经DSA检查确诊为SSS。CTA对锁骨下动脉或无名动脉狭窄程度的诊断与DSA诊断结果有较好的一致性(P <0. 05)。TCD诊断的SSS分期与DSA诊断锁骨下动脉或无名动脉狭窄程度呈正相关(P <0. 05)。结论 CTA与TCD检查对SSS均具有一定的诊断价值,两者联合检查具有互补作用。

Objective To investigate the diagnostic value of CT angiography( CTA) and transcranial Doppler( TCD) for subclavian steal syndrome( SSS). Methods Fifty-one patients with suspected SSS were enrolled and underwent CTA,TCD and digital subtraction angiography( DSA). The consistency between CTA and DSA for diagnosing the severity of subclavian or innominate artery stenosis was assessed,the correlation of SSS stage assessed by TCD with severity of subclavian or innominate artery stenosis assessed by DSA was analyzed. Results Among the 51 patients,46 cases were diagnosed as SSS identified by DSA. CTA was highly consistent with DSA in assessing the severity of subclavian or innominate artery stenosis( P < 0. 05). There was a positive correlation between SSS stage assessed by TCD and severity of subclavian or innominate artery stenosis assessed by DSA( P < 0. 05). Conclusion Both CTA and TCD have a certain diagnostic value for SSS,their combination presents complementary effects.