【摘要】 目的探讨三维计算机断层扫描血管造影(3D-CTA)对颅内动脉瘤的临床诊断价值。方法经普通CT诊断为蛛网膜下腔出血而高度怀疑颅内动脉瘤的患者38例,均行3D-CTA和DSA检查并同时获得CT三维图像;对颅内动脉显示情况、动脉瘤检出情况、动脉瘤与载瘤动脉及颅骨解剖关系进行回顾性分析。结果与DSA一样,CTA图像可清晰显示颅内动脉主干及其分支。动脉瘤确诊患者35例,检出动脉瘤42个;其中,DSA检出动脉瘤40个,CTA检出动脉瘤41个。CTA对25个瘤颈形态及与载瘤血管三维立体结构清晰显示,DSA仅对8个动脉瘤颈清晰显示(P<0.05)。结论 3D-CTA可以作为临床筛选诊断颅内动脉瘤的常规影像学检查方法,能够为临床治疗方案的选择提供参考依据。更多还原

【Abstract】 Objective To investigate the diagnostic value of three-dimensional computed tomographic angiography(3D-CTA) in intracranial aneurysms. Methods 3D-CTA and digital subtraction angiography(DSA) examinations were performed in 38 patients with subarachnoid hemorrhage or highly suspected to be intracranial aneurysm diagnosed by CT.The 3DCT images from 3D-CTA and DSA were obtained.The manifestations of intracranial arteries,detection of intracranial aneurysm and relationship between aneurysm and parent artery or crinial bone were analyzed. ResultsCTA images showed the intracranial arterial trunk and branchs as clear as DSA.A total of 42 intracranial aneurysms in 35 cases was diagnosed definitely,of which 40 aneurysms were detected by DSA and 41 aneurysms were detected by CTA.The appearance of aneurysm neck and stereochemical structure of 25 parent arteries were clearly showed by CTA,but the appearance of aneurysm neck was clearly showed only in 8 aneurysms by DSA(P<0.05). Conclusion 3D-CTA can be used as a conventiobal radiological method to find aneurysms and reexamine them after surgery and may provide a reference for selecting the regime of clinical treatment.更多还原