磁共振二维快速平衡稳态进动序列对主动脉夹层诊断的价值  

Application of breath hold two dimensional fast imaging employing steady state acquisition sequence for aortic dissection magnetic resonance many time phases imaging

作　　者：吴永峻[1] 陈东[1] 陈武标[1] 田国强[1] 

机构地区：[1]广东医学院附属医院放射科磁共振室,广东省湛江524001

出　　处：《中国基层医药》2008年第4期564-565,共2页Chinese Journal of Primary Medicine and Pharmacy

摘　　要：目的评价屏气二维快速平衡稳态进动序列（2D．FIESTA）在磁共振主动脉夹层（AD）多时相的成像特点及应用价值。方法回顾分析5例采用2D-FIESTA多时相成像AD患者，DebakeyⅠ型1例，De．bakeyⅡ型1例，DebakeyⅢ型3例，均采用心电触发的2D．FIESTA序列，呼气末屏气采集，采用主动脉长轴切面（平行主动脉弓斜位扫描）及横断面扫描，使用工作站AW4．2软件分析结果。结果AD真、假腔显示率100％，内膜片显示率100％，内膜破口显示4例，附壁血栓显示2例，主动脉关闭不全显示2例，内膜破口血流喷射2例。结论二维快速平衡稳态进动序列（2D-FIESTA）磁共振多时相成像在AD显示图像对比度高，伪影少，内膜片、内膜破口等显示清楚。Objective To evaluate the imaging characteristic and the value of application of breath hold two dimensional fast imaging employing steady state acquisition（FIESTA） sequence,for aortic dissection（AD） magnetic resonance many time phases imaging. Methods To analyze retrospectively the manifestation of 5 cases with aortic dissection diagnosed,Bakey type Ⅰ,Ⅱ,Ⅲ, in 1,1 .and 3, all were examined using ECG triggered, two dimensional FIESTA sequence during end-expiratory breath hold. Scan with the long axes of aortic position（oblique position parallel with aortic arch） and transitional position. The results were analyzed by the soft of workstation AW4.2. Results The display rate of the true lumen and the false lumen of AD were 100 % ,the display rate of membrane in aorta was 100 % ,4 cases showed the hole of intimal tear,2 cases with thrombus,2 cases with aortic regurgitation,2 cases with ejecting in the hole of intimal tear. Conclusion Need not any contrast media, quickly acquired imaging, high contrast to noise ratio,least artifact,and especially show membrane in aorta and for the hole of intimal tear of aortic dissection（AD） magnetic resonance many time phases imaging with two dimensional FIESTA sequence.

关 键 词：动脉瘤 夹层 磁共振成像 

分 类 号：R54[医药卫生—心血管疾病] R44[医药卫生—内科学]