64层螺旋CTA评价颅颈部动脉狭窄的临床研究

Clinical research of evaluation of cerebral and carotid arterious stenosis with 64-slice spiral CTA

目的以DSA结果为对照标准,评价64层螺旋头颈血管CTA判断不同程度狭窄的准确性。方法搜集临床怀疑颅颈部动脉狭窄性病变患者27例,均行头颈血管CTA检查,并在一周内行DSA检查,将CTA与DSA结果对照,评价64层CTA诊断头颈部动脉狭窄的准确性。结果以双侧颈、椎动脉为观察对象,共观察108支血管。CTA显示不同程度狭窄的血管段共115段;DSA显示不同程度狭窄的血管段共108段。64层CTA对颈、椎动脉狭窄总的诊断敏感度分别为97.70%、93.75%,特异度分别为99.51%、99.57%。结论64层螺旋CT头颈血管CTA无创,快捷,简单易行,能够清晰显示颅颈部动脉狭窄性病变,具有较高的敏感性与特异性。

Objective Compared with DSA results, evaluation of the accuracy of the carotid arterious stenosal degree with 64-slice spiral CTA. Methods Compile 27 borderline cases with cerebral and carotid arterious stenosis, which undergoing cerebral and carotid CTA examination and DSA examination in one week. Compared with DSA, appreciate accuracy of 64-slice CTA in diagnosis of cerebral and carotid arterious stenosis. Results Bilateral carotid, vertebral artery were observation object, total 108 branches. Various arterious stenosis diagnosed by CTA were 115 segment, DSA 108 segment. Sensitivity of 64-slice CTA in diagnosis carotid and vertebral arterious stenosis is respectively 97.70%, 93.75%, specialty is respectively 99.51%, 99.57%. Conclusion As a non-invasive and quick method, 64-slice CT angiography in cerebral and carotid arteries can display clearly cerebral and carotid arterious stenosis,which has a high sensitivity and specificity.