64层CT血管造影在主动脉夹层诊断中的应用  

The Application of 64-Slice CT Angiography in Diagnosis of Aortic Dissection

作　　者：邢海凤 闵智乾[2] 吴晓红[2] 张鑫[2] 

机构地区：[1]西安市铁路医院放射科,710004 [2]陕西省人民医院CT&MR室,陕西西安710068

出　　处：《现代医用影像学》2011年第3期149-151,共3页Modern Medical Imageology

基　　金：陕西省科学技术研究发展计划社发攻关资助项目

摘　　要：目的:探讨64层螺旋CT血管造影及其后处理技术在诊断主动脉夹层及其分型中的应用价值。材料与方法:回顾性分析21例临床确诊为主动脉夹层的急重症胸痛患者,所有病例均行64层螺旋CT血管造影检查并均行多平面重组(MRP)、容积再现(VR)、最大密度投影(MIP)及曲面重组(CPR)等后处理操作,分析其影像学特征并进行归纳总结。结果:21例主动脉夹层中,以DeBakey分型统计分别为I型13例,Ⅱ型2例,Ⅲ型6例,所有病例均清晰显示由内膜瓣分开的真假两腔、主要破口位置及累及范围。结论:64层螺旋CT血管造影在主动脉夹层诊断中有非常重要的意义及实用价值,可以明确诊断主动脉夹层并进行分型。Purpose ： to evaluate the value of 64 - slice spiral computed tomography angiography in diagnosis of acute aortic dissection and its Types. Materials and Methods： 21 cases confirmed by clinical originated with acute severe chest pain caused by acute aortic dissection were retrospectively analyzed. All cases were examined by 64 - slice Spiral CT Angiography. The images were processed by multiple planar reconstruction, maximal intensity projection, curved planar reconstruction and volume rendering, then the imaging features were obtained. Results： There were totally 13 case of Type Ⅰ, 2 cases of Type Ⅱ , 6 cases of Type Ⅲ, all cases were clearly displayed the true and false channel of dissection by the intimal flap, the main tear entry and the extent of dissection. Conclusion ： 64 - slice CT has very important meaning and practical application value , also can be used correctly diagnosis of aortic dissection and its Types.

关 键 词：主动脉夹层 64层螺旋CT血管造影 后处理技术 

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