三维动态增强磁共振血管成像表面重建在主动脉弓畸形诊断中的价值初探  

Primary evaluation on the value of the surface shade display of 3 dimensional dynamic contrast enhanced MRA in diagnosing the aortic arch malformation

作　　者：杨军[1] 曾维新[1] 周康荣[1] 

机构地区：[1]复旦大学附属中山医院放射科,上海200032

出　　处：《中华心血管病杂志》2002年第5期298-301,共4页Chinese Journal of Cardiology

摘　　要：目的　探讨三维动态增强磁共振血管成像 (3 dimensionaldynamiccontrastenhancedMRA ,3DDCEMRA)表面重建 (surfaceshadedisplay ,SSD)对主动脉弓畸形的诊断价值。方法　磁共振血管成像确诊的 9例主动脉弓畸形中 ,2例行时间飞跃法磁共振血管成像 (2 dimensionaltime of flightMRA ,2DTOFMRA)检查 ,6例行 3DDCEMRA检查 ,1例同时行 2DTOFMRA及 3DDCEMRA检查。结果　 5例迷走锁骨下动脉及 3例颈位主动脉弓的显示 ,3DDCEMRA优于 2DTOFMRA ,SSD优于最大强度投影(MIP) ;1例右位主动脉弓的显示 ,MIP同SSD ;2例主动脉弓褶曲及 1例主动脉弓离断的显示 ,SSD优于MIP。结论　对于主动脉弓畸形的显示 ,SSD是Objective To Evaluate primarily the value of surface shade display (SSD) of 3 dimensional dynamic contrast enhanced MRA (3D DCE MRA) in diagnosing the variable aortic arch malformations Methods 2D TOF MRA in 2 of 9 cases, 3D DCE MRA in 6 of 9 cases and two methods in 1 of 9 cases were performed Results 3D DCE MRA was superior to 2D TOF MRA in demonstrating 5 aberrant subclavian arteries and 2 cervical aortic arches, SSD was superior to MIP in showing 2 cervical aortic arches, 2 kinking of aortic arches and 1 interrupted aortic arch, but two reconstruction methods were the same in revealing one right aortic arch Conclusion SSD might be the best reconstruction method of 3D DCE MRA in displaying aortic arch malformation

关 键 词：三维动态增强 磁共振血管成像 表面重建 主动脉弓畸形 诊断 

分 类 号：R445.2[医药卫生—影像医学与核医学] R543.104[医药卫生—诊断学]