3D—CTA与3D—DSA对颅内后循环动脉瘤影像诊断的比较研究

目的比较三维螺旋CT血管造影术（3D—CTA）和三维数字减影血管造影术（3D—DSA）在颅内后循环动脉瘤诊断及介入治疗中的应用价值。方法选择天津市环湖医院2007年1月至2008年3月就诊的后循环动脉瘤所致的自发性蛛网膜下腔出血（SAH）患者164例，其中男性26例，女性138例，年龄21～80岁，平均年龄53．4岁。行3D—CTA、3D—DSA检查，研究并比较它们的CTA和DSA影像特点。结果164例后循环动脉瘤患者中共213个病灶，其中后交通动脉瘤115个，小脑后下动脉瘤19个，椎基底交界及基底动脉瘤18个，椎动脉颅内段动脉瘤9个，大脑后动脉瘤3个，小脑上动脉和小脑前下动脉瘤各2个。3D—DSA与3D—CTA准确性比较，差异无统计学意义。结论对动脉瘤应用血管内栓塞治疗时，在三维影像指导下可提高动脉瘤的致密填塞率。但是在三维影像的测量值要大于二维影像的测量值。

Comparative study on imaging diagnosis in posterior circulation intracranial aneurysm with 3D-CTA and 3D-DSA

Objective To comparatively study the clinical application values of three-dimensional spiral computed tomography angiography(3D- CTA) and three-dimensional digital substraction angiography(3D-DSA) technique in posterior circulation intracranial aneurysm (PCA). Methods A total of 164 patients with subarachnoid hemorrhage (SHA) were enrolled, male 26, female 138, aged 21-80 years, mean age 53.4 years. All patients were examined by 3D-CTA and 3D-DSA,and imagings of CTA and DSA were studied and compared. Result...