主动脉夹层动脉瘤的CT诊断

目的 讨论螺旋CT对主动脉夹层动脉瘤的诊断准确率及对临床的价值。方法 对11例病人进行CT平扫,其中9例进行CT增强扫描,原始图像在工作站进行MPR图像重建。结果 CT平扫可显示主动脉增宽,主动脉壁的钙化,CT增强扫描及重建可清晰地显示主动脉夹层动脉瘤的内膜瓣的撕裂的形态,动脉瘤的真假腔的形态及大小,内膜瓣的钙化和移位,部分可见破裂口的位置及大小。结论螺旋CT的平扫和增强扫描是诊断主动脉夹层动脉瘤的首选和可靠的检查手段。并且能为外科手术提供更多的信息。

CT Diagnosis of Aortic Dissecting Aneurysm

Objective To investigate the diagnostic accuracy and clinical value of spiral CT to aortic dissecting a-neurysm(ADA). Methods Plain spiral CT scans were performed in llpatients.and 9 of them were performed enhanced spiral CT,then te original images were carried out to MPR image reconstruction. Results Plain spiral CT scans displayed dilated aorta and calcification of aortic wall. Enhanced spiral CT scans and reconstruction well displayed the conformation of the aortic avulsion,the conformation and size of the true and false cavities,the calcification and dislocation of the inner membrane,and the location and size of the lacuna. Conclusion Plain and enhanced spiral CT scans were the first and credible means in the diagnosis of ADA,and could offer more information for surgical operation.