三维数字减影血管造影在颅内动脉瘤治疗中的价值

目的探讨三维（3D）数字减影血管造影（DSA）在颅内动脉瘤治疗中的价值。方法对47例疑似或确诊颅内动脉瘤的患者行二维（2D）DSA及旋转数字血管造影（旋转DA）检查，并在此基础上行3DDSA重建，对所得到的图像进行比较，分析动脉瘤的形状、瘤颈、与周围血管的关系及治疗方案的选择。结果47例中经3DDSA共检查出46例53个动脉瘤，2DDSA有假阳性1例，假阴性2例，在动脉瘤的形状、瘤颈、与周围血管的关系显示上，3DDSA明显优于旋转DA和2DDSA。结论在颅内动脉瘤的治疗上，3DDSA比旋转DA和2DDSA能提供更加详细的信息。

Value of three dimensional digital subtraction angiography in treatment of intracranial aneurysm

Objective To explore the value of three dimensional(3D) digital subtraction angiography(DSA) in treatment of intracranial aneurysm.Methods Forty-seven patients with suspected or confirmed intracranial aneurysms underwent two dimensional(2D) DSA and rotational digital angiography(DA),on which 3D DSA were reconstructed.Aneurysm shape,neck,the relationship between aneurysm and neighboring artery and therapeutic regimen were compared.Results Fifty-three aneurysms were found in 46 patients.There were 1 false positive and 2 false negative detection of aneurysms in 2D DSA.For visualization of aneurysms shape,neck and relationship to neighboring arteries,3D DSA were superior to those of 2D DSA and rotational DA.Conclusion Compared with 2D DSA and rotational DA,3D DSA can provide more detail information in treatment of intracranial aneurysm.