多层螺旋CT血管成像诊断主动脉夹层的临床应用研究  

The application of multi-layered screw CT angiography in aortic dissection

作　　者：谢良军[1] 温长慧[1] 周波[1] 王敏珉[1] 

机构地区：[1]山东省济南市第三人民医院影像中心,250101

出　　处：《中国实用医药》2009年第24期13-14,共2页China Practical Medicine

摘　　要：目的探讨多层螺旋CT血管成像(MSCTA)在主动脉夹层中的应用价值。方法回顾性分析56例主动脉夹层的CT表现,后处理方法采用容积再现法(VR)、表面覆盖法(SSD)、最大密度投影(MIP)、多平面重组(MPR)及曲面重建等处理技术,以VR作为诊断的主要依据,其他重组方法作为补充。结果56例主动脉夹层中,主动脉增宽28例(50%),观察到内膜钙化移位22例(39.3%),心包纵隔积血18例(32.1%),胸腔积液12例(21.4%)。结论多层螺旋CT血管成像对主动脉夹层有较高的诊断价值,能较好的显示真假腔、内膜及受累血管的范围,为手术提供重要信息。Objective To eaplore the diagnostic value of multi-layered screw CT angiography in aortic dissection. Methods We studied 56 patient＇ MSCTA image caused by aortic dissection were retrospectively analysed, the post-processing techniques of all the cases included volume rendering （VR）, surfac shaded display （ SSD）, maximum intensity projection （MIP） , multiplanar reformation （ MPR ） and curved planar reformation （CPR）. In all the techniques, VR was considered as the main evidence of diagnosis, and other techniques were used as supplements. Results In 56 examples of aortic dissections, 28 arteries showed the aorta broadens （50%） ,22 examples wse internal membrane calcification shifting（ 39. 3% ）, 18 examples demonstration peri- cardum or mediastinum hematocele（32. 1% ）, 12 examples demonstration the chest catity accumulates the fluid （21.4%）. Conclusion The multi-layered screw CT blood vessel image formation has the high diagnosis value to the aorta band, Can the good demonstration real pseudocele, the internal membrane and exhausts oneself blood vessel＇ s scope, Supplies the main information for the surgery.

关 键 词：血管造影术 主动脉夹层 体层摄影技术 X线计算机 

分 类 号：R816.2[医药卫生—放射医学] R543.1[医药卫生—临床医学]