主动脉夹层(AD)是一种危重的心血管疾病,90%的病人伴有高血压病和动脉粥样硬化,40岁以下的年轻患者多见于主动脉囊性中层坏死(如Marfan综合征)。多层螺旋CT(MSCT)由于扫描速度快,覆盖范围广,短时屏气即可完成主动脉全程的扫描,加上强大的图像后处理功能,非常适宜于主动脉病变的检查。笔者收集了经16层螺旋CT Aortic dissection (AD) is a serious cardiovascular disease, 90% of patients with hypertension and atherosclerosis, young patients under the age of 40 more common in aortic cystic necrosis (such as Marfan syndrome) . Multi-slice spiral CT (MSCT) due to scanning speed, wide coverage, short breath-hold to complete the aortic scan, coupled with powerful image post-processing function, is very suitable for the examination of aortic lesions. I collected the 16-slice spiral CT