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《Journal of Clinical Radiology》 2013-04
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Research of Conventional Imaging Methods in Diagnosis of Vasospasm Cause by Subarachnoid Hemorrhage

ZHAO Yiping,ZHANG He,LI Songbai,et al. Department of Radiology,The Second Affiliated Hospital of Dalian Medical University, Dalian,Liaoning Province 116023,P.R.China  
Objective To investigate the value of conventional imaging methods including CT angiography(CTA) and transcranial Doppler ultrasound(TCD) in diagnosing cerebral vasospasm(CVS) caused by subarachnoid hemorrhage(SAH).Methods Thirty eight patients with SAH underwent 256 slice computed tomography angiography,TCD and digital subtraction angiography(DSA).DSA was regarded as golden standard for diagnosing CVS caused by SAH.Compared with DSA,the sensitivity and specificity of CTA and TCD were calculated.Results DSA confirmed 11 patients with CVS.CTA images detected CVS in 14 patients,and TCD detected in 15.Compared with DSA,CTA had higher accuracy in displaying proximal segment of anterior,middle cerebral artery,and patients with no or severe vasospasm,low Hunt and Hess grading.TCD had more reliable diagnosis in patients with M1 segment severe cerebral vasospasm and high Hunt and Hess grading.The CTA was more sensitive and had higher sensitivity and specificity in the diagnosis of CVS(62.5%,81.8%).Conclusion CTA can detect the cause of SAH.Beside that,CTA has higher diagnostic value than TCD in displaying vasospasm cause by SAH.
【Fund】: 国家自然科学基金资助面上项目(编号:81071151)
【CateGory Index】: R743.3
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Chinese Journal Full-text Database 4 Hits
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