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目的探讨经颅多普勒(TCD)、CT血管造影术(CTA)与数字减影血管造影术(DSA)在缺血性脑血管病中的应用价值。方法选取已接受脑血管DSA检查的缺血性脑血管病患者40例,并与其术前TCD和脑血管CAT检查结果进行三者分析比较。结果 TCD、CTA与DSA符合性DSA为标准,CTA对诊断血管狭窄或闭塞的敏感性83.3%,特异性93.6%,符合率91.4%;TCD对诊断血管狭窄或闭塞的敏感性70.8%,特异性87.5%,符合率83.9%。结论 TCD、CTA与DSA检查结果之间有较高的符合率,可作为缺血性脑血管病诊断的重要参考。
Objective To investigate the value of transcranial Doppler (TCD), CT angiography (CTA) and digital subtraction angiography (DSA) in ischemic cerebrovascular disease. Methods Forty patients with ischemic cerebrovascular disease who had undergone DSA of cerebrovascular disease were selected and compared with the preoperative TCD and cerebrovascular CAT findings. Results The DSA of TCD, CTA and DSA was the standard. The sensitivity and specificity of CTA for the diagnosis of vascular stenosis or occlusion were 83.3%, 93.6% and 91.4%, respectively. The sensitivity of TCD to the diagnosis of vascular stenosis or occlusion was 70.8% 87.5%, with a rate of 83.9%. Conclusion There is a high coincidence rate between TCD, CTA and DSA, which can be used as an important reference for the diagnosis of ischemic cerebrovascular disease.