夹层动脉瘤是心血管临床中的常见病。掌握此病的临床特点,采用正确的检查方法以及掌握本病的ＣＴ特征,可以大幅度减少误诊。我院ＣＴ轴位断层诊断夹层动脉瘤后,经彩色多普勒、ＤＳＡ及临床证实的有12例,现报道如下。1　资料与方法11　临床资料:1993年3月至1997年9月,经ＣＴ、彩 Dissecting aneurysms are common diseases in cardiovascular clinics. Grasping the clinical features of the disease, adopting correct examination methods and mastering the CT features of the disease can significantly reduce misdiagnosis. After diagnosis of dissecting aneurysm in the CT axial slice of our hospital, 12 cases were confirmed by color Doppler, DSA, and clinical findings. The report is as follows. 1 Materials and Methods 11 Clinical data: March 1993 to September 1997, CT, color