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目的探讨三维CT血管成像(3D-CTA)在颅内动脉瘤诊治中的价值。方法回顾性分析自发性蛛网膜下腔出血(SAH)患者136例。其中,行3D-CTA检查107例,行DSA检查53例,同时行DSA及3D-CTA检查24例。对比3D-CTA和DSA的诊断敏感度、特异度及其图像。结果136例中,确诊动脉瘤103例。3D-CTA的敏感度为97.4%,特异度为100%;DSA的敏感度为95.0%,特异度为100%,两者诊断效能比较,差异无统计学意义(P>0.05)。在显示瘤颈形态、宽度、载瘤动脉及瘤周骨性解剖标志等方面,3D-CTA明显优于DSA。结论3D-CTA能独立诊断颅内动脉瘤,对动脉瘤的形态可提供比DSA更为详尽的资料,给手术提供更多帮助。
Objective To investigate the value of three-dimensional CT angiography (3D-CTA) in the diagnosis and treatment of intracranial aneurysms. Methods A retrospective analysis of 136 cases of patients with spontaneous subarachnoid hemorrhage (SAH). Of these, 107 were examined by 3D-CTA, 53 by DSA, and 24 by DSA and 3D-CTA. Diagnostic sensitivity, specificity, and images comparing 3D-CTA and DSA. Results Among the 136 cases, 103 aneurysms were diagnosed. The sensitivity and specificity of 3D-CTA were 97.4% and 100% respectively. The sensitivity and specificity of DSA were 95.0% and 100% respectively. There was no significant difference between the two groups in the diagnostic efficiency (P> 0.05). 3D-CTA was significantly superior to DSA in displaying tumor neck morphology, width, tumor-bearing artery and peritumoral anatomical landmarks. Conclusions 3D-CTA can independently diagnose intracranial aneurysms, provide more detailed information on the morphology of aneurysms than DSA, and provide more help for surgery.