螺旋CT在诊断主动脉夹层破口位置的应用价值

The Value of Spiral CT in the Diagnosis of Aortic Dissection

目的探讨多层螺旋CT在显示主动脉夹层破口及再破口位置的应用价值。方法回顾性分析12例经64排螺旋CT诊断为主动脉夹层病例,通过现有的图像后处理软件系统,对图像的原始数据进行分析。结果于真、假腔之间均见线样弯曲突向假腔的低密度影;破口显示11例(占91.6%),尤其在冠状及矢状面MPR图像上显示更加清楚,附壁血栓7例,均位于假腔。根据国际上常用的分类法,Ⅰ型夹层1例,Ⅱ型夹层1例,Ⅲ型夹层9例,1例为腹主动脉壁间血肿。结论多层螺旋CT重建技术可以更好地显示主动脉夹层破口及再破口的位置,从而对临床治疗提供帮助。

Objective To explore the value of multislice spiral CT in diagnosis of aortic dissection.Methods 12 cases diagnosed as aortic dissection by 64 spiral CT were analyzed retrospectively,and the original data of the image were analyzed through the existing image post-processing software system.Results The low density shadow of the curved protrusion cavity was seen between Yuzhen and the pseudo cavity.The rupture showed 11 cases(91.6%),especially on the coronal and sagittal MPR images,and 7 cases of Wall thrombosis were located in the false cavity.According to the commonly used classification methods in the world,1 case of type I dissection,1 case of type II dissection,9 cases of type III dissection,and 1 case of abdominal aortic intermural hematoma.Conclusion Multi-slice spiral CT reconstruction can better show the location of aortic dissection and re-incision,thus providing assistance for clinical treatment.