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目的对比评价64层螺旋CT最大密度投影(CTA-MIP),CTA容积再现(CTA-VR)与三维数字血管造影(3D-DSA)对颅内动脉瘤(CA)的诊断价值。资料与方法回顾性分析32例经手术及DSA确诊的CA 64层CT血管成像资料,并与DSA进行对照。结果 32例共40个动脉瘤,CTA-MIP发现35个动脉瘤,CTA-VR发现37个动脉瘤,3D-DSA发现39个动脉瘤。40个动脉瘤中11个位于后交通动脉,16个位于大脑中动脉,4个位于基底动脉,1个位于椎动脉,2个位于大脑前动脉,3个位于大脑后动脉,3个位于颈内动脉。3D-DSA与CTA比较,差异无统计学意义。结论在CA影像学诊断上,CTA-MIP、CTA-VR和3D-DSA各有优势,CTA可作为外科治疗或介入治疗的筛选方法。
Objective To compare the diagnostic value of CTA-MIP, CTA-VR and 3D-DSA in the diagnosis of intracranial aneurysm (CA). Materials and Methods Retrospective analysis of 32 cases of CA 64 CT angiography confirmed by surgery and DSA was performed and compared with DSA. Results A total of 40 aneurysms were found in 32 cases, 35 aneurysms were found in CTA-MIP, 37 aneurysms were found in CTA-VR and 39 aneurysms were found in 3D-DSA. Eleven of the 40 aneurysms were located in the posterior communicating artery, 16 in the middle cerebral artery, 4 in the basilar artery, 1 in the vertebral artery, 2 in the anterior cerebral artery, 3 in the posterior cerebral artery, and 3 in the neck artery. 3D-DSA and CTA, the difference was not statistically significant. Conclusion CTA-MIP, CTA-VR and 3D-DSA have their own advantages in the diagnosis of CA. CTA can be used as a screening method for surgical treatment or interventional therapy.