螺旋CT对主动脉夹层动脉瘤的诊断价值

目的: 探讨螺旋CT对主动脉夹层动脉瘤的诊断价值及对临床的指导意义。方法: 回顾性分析15例主动脉夹层动脉瘤螺旋CT检查的影像资料。结果: 平扫示主动脉管径增粗,腔内见低密度分隔影或呈线样钙化,壁呈蛋壳样钙化。增强扫描示主动脉双腔影及内膜片、破口的形态、位置,受累主动脉及其分支的范围。结论: 螺旋CT特别是多层螺旋CT是诊断主动脉夹层动脉瘤有效的方法,对临床及时诊断和指导手术治疗具有重要价值。

Spiral CT in diagnosis of aortic dissection

Objective:To estimate the value of spiral CT in diagnosis and treatment of aortic dissection.Methods:The imaging data of fifteen cases of aortic dissection were analyzed retrospectively.Results:On unenhanced CT scan,the imaging findings showed dilation of the aorta,linear hypoattenuating intima or intimal calcifications in the lumen and egg-like calcification on the aortic wall.On enhanced CT scan,double lumens,intimal flap,shape and location of the rupture,extension of the involved aorta and its branches were demonstrated.Conclusions:Spiral CT,especially multi-detected CT,is effective in diagnosis of aortic dissection and is of great value in guiding clinical treatment