[摘要] 目的 评价三维对比增强MR血管造影( 3D CE-MRA)在胸、腹主动脉病变中的技术方法和临床应用价值。方法 应用屏气三维快速梯度回波序列对14例胸、腹主动脉病变患者行3D CE-MRA检查，之后用最大信号强度投影( MIP)进行重建。结果 14例受检者均获得成功。其中，胸主动脉瘤3例；腹主动脉瘤3例；夹层动脉瘤( DeBakey Ⅲ型)4例；腹主动脉闭塞1例；主动脉硬化1例；正常表现2例。3D CE-MRA图像不仅能显示病变血管的部位、范围和程度，更为重要的是可同时明确病变部位的性质。结论 3D CE-MRA无创、安全、简捷，在胸、腹主动脉大血管病变影像学诊断中具有重要价值，是诊断血管病变又一新方法。

    [关键词] 血管造影术；磁共振成像；对比增强；诊断

    Value of three-dimensional contrast-enhanced magnetic resonance angiography in the diagnosis of thoracic and abdominal aortic disease

    WANG Qi,BAI Jin-hua,GUO Ya-ru,et al.MR Section,Department of Interventional Radiology,Inner Mogolia Autonomous Region Hospital,Huhhot 010017,China

    [Abstract] Objective To evaluate the technique and clinic application of three-dimensional contrast-enhanced MR angiography (3D CE-MRA) in the diagnosis of thoracic and abdominal aortic disease.Methods 3D CE-MRA was performed in 14 cases with thoracic and abdominal aortic diseases using fast SPGR sequence,3D reconstruction techniques with MIP.Results 3D CE-MRA was successful in 14 cases.There were 3 aneurysm of thoracic aorta,3 aneurysm of abdominal aorta,4 aortic dissection (DeBakey type Ⅲ),1 obstruction of abdominal aorta,1 atherosclerosis of aorta,2 normal,respectively.the position and extension as well as nature of the lesions could be revealed on 3D CE-MRA images.Conclusion 3D CE-MRA is a non-invasive,safe and effective method of depicting vessels,which can provide more information for clinic surgery or interventional therapy,it is a new method for the diagnosis of vascular disease. ......