【摘要】 目的通过与DSA对比,评价三维CT血管造影在颅内动脉瘤诊断中的价值。方法对30例因蛛网膜下腔出血高度怀疑动脉瘤破裂的病人行CTA检查,同期行DSA检查及可行的血管内栓塞治疗。比较CTA与DSA检出动脉瘤的敏感性、特异性和准确性以及在显示动脉瘤瘤颈和载瘤动脉关系上的优劣。结果CTA检出动脉瘤26个,对动脉瘤的敏感性为95.5%,特异性为87.5%,准确性为93.3%,与DSA比较无显著差异。CTA对动脉瘤细节及瘤颈的显示明显优于DSA。结论CTA能无创有效的诊断颅内动脉瘤,所提供的诊断信息对治疗方案的制订具有极大的帮助,CTA还特别适用于急症病人的动脉瘤筛查。更多还原

【Abstract】 Objective To evaluate the value of three dimensional CT angiography in the diagnosis of intracranial aneurysms by the comparison with DSA.Methods CTA and DSA were performed in 30 patients(aged 34~76 years) who were highly suspected with intracranial aneurysms.Feasible endovascular treatment were performed simultaneously.The sensitivity,specificity,accuracy in detecting the aneurysms,in demonstrating the neck of the aneurysms and the relationship of parent artery were compared between CTA and DSA.Results 26 intracranial aneurysms were detected by CTA,the sensitivity,sepcificity and accuracy were 95.5%,87.5% and 93.3% respectively.There were no statistical differences among the sensitivity,specificity,accuracy between CT and DSA(Ρ<0.05).CTA were significantly better than that of DSA in showing the detail of aneurysms and its neck.Conclusion 3D CTA is a fast,noninvasive and efficient technique in diagnosing the intracranial aneurysms.It’s three dimensional information is helpful for treatment planning.CTA can be specially used to screen aneurysms in acute patients.更多还原