16层CT血管造影对主动脉夹层的诊断价值  

Application of 16-slice CT Angiography in Evaluation of Aortic Dissection

作　　者：郑海军[1] 罗学军[1] 周海军[1] 左勤学[1] 王向日[1] 

机构地区：[1]郴州市第一人民医院放射科,湖南郴州423000

出　　处：《实用放射学杂志》2008年第6期756-758,763,共4页Journal of Practical Radiology

摘　　要：目的探讨16层CT血管造影(16SCTA)对主动脉夹层的诊断价值和技术优势。方法对39例主动脉夹层进行16SCTA检查,采用多平面重建(MPR),曲面重建(CPR),容积再现(VR),最大密度投影(MIP)和仿真内镜(VE)多种图像后处理技术,并结合原始横断面增强图像进行综合分析。结果根据DeBakey分型,本组39例主动脉夹层患者中,16SCTA显示Ⅰ型5例、Ⅱ型1例和Ⅲ型33例。显示真假腔39例(100%)、内膜片39例(100%)、内膜破口25例(64.1%)、假腔内血栓17例(43.6%)。结论16SCTA可作为主动脉夹层治疗前首选的影像学检查方法,价值可以肯定。Objective To evaluate the diagnostic value and technique advantage of 16 -slice CT angiography（16SCTA） in aortic dis- section. Methods 39 cases of aortic dissection underwent 16SCTA. The data were reconstructed by multiplanar reconstruction （ MPR） , curved planar reconstruction （ CPR ） , volume rendering （ VR ） , maximum intensity projection （ MIP ） , virtual endoscopy （ VE ） , and generally analyzed in combination with original axial images. Results According to DeBakey＇ s classification,DeBakey＇ s type Ⅰ in 5 cases, type Ⅱ in one case and type Ⅲ in 33 cases were founed in the 39 cases. 16SCTA clearly showed that including the ture and false lumen （39 cases, 100% ） , intimal flaps （ 39 cases, 100% ） , intimal tear（ 25 cases ,64.1% ） , and thrombus inside the false lumen （ 17 cases,43.6% ）. Conclusion 16SCTA may be as the first choice method in diagnosis of aoric dissection,and which is considered as having great value.

关 键 词：体层摄影术 X线计算机 血管造影术 主动脉夹层 

分 类 号：R543.1[医药卫生—心血管疾病] R814.42[医药卫生—内科学]