目的评价3.0 T时间飞跃法磁共振血管成像(3.0 T 3D-TOF MRA)对颅内动脉瘤的诊断价值。方法选择25例有颅内动脉瘤相关症状患者,其中男性14例,女性11例;年龄25～74岁,平均年龄57岁。对其3.0 T 3D-TOF MRA诊断为颅内动脉瘤患者的磁共振资料进行回顾性分析,并与数字减影血管造影(DSA)对照。结果3.0 T 3D-TOF MRA共显示28个动脉瘤,其中单发22例,3例为多发动脉瘤,起自颈内动脉系统25个;起自基底动脉系统3个;DSA检查共显示27个动脉瘤。结论3.0 T 3D-TOF MRA虽然对于直径≤3 mm的微小动脉瘤的诊断存在一定的误诊及漏诊率,但其诊断颅内动脉瘤时能比较全面地显示动脉瘤,三维信息对临床确立治疗方案有很大帮助。3.0 T 3D-TOF MRA不失为高危人群或临床怀疑颅内动脉瘤患者筛查及随诊观察的有效手段。 Objective To evaluate the diagnostic value of 3.0 T 3D-TOF MRA for intracranial aneurysms at 3.0 T time. Methods Twenty-five patients with intracranial aneurysm related symptoms were selected, including 14 males and 11 females, aged from 25 to 74 years with a mean age of 57 years. MRI data of patients with intracranial aneurysm diagnosed by 3.0 T 3D-TOF MRA were retrospectively analyzed and compared with digital subtraction angiography (DSA). Results A total of 28 aneurysms were detected in 3.0 T 3D-TOF MRA, including 22 cases of single aneurysm, 3 cases of multiple aneurysms, 25 cases of internal carotid artery system, 3 cases of basilar artery system, and 27 cases of DSA Aneurysm. Conclusion Although the diagnosis of intracranial aneurysms of 3.0 T 3D-TOF MRA has some misdiagnosis and misdiagnosis rates for the diagnosis of small aneurysms ≤3 mm in diameter, aneurysms can be displayed more completely in the diagnosis of intracranial aneurysms. The three-dimensional information on the established clinical treatment plan Great help. 3.0 T 3D-TOF MRA is an effective means of screening and follow-up observation of patients with high risk or clinically suspected intracranial aneurysms.