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目的：探讨急性主动脉综合征双源CT血管造影(DSCTA)表现,进一步提高对本类病的认识。方法收集我院行DSCTA检查的急性主动脉综合征100例患者,以横轴位为主,结合多种后处理技术如容积再现(VR)、多平面重组(MRP)、曲面重组(CPR)及最大密度投影(MIP)重组图像对急性主动脉综合征的部位、大小及合并征象进行回顾性分析。结果100例患者中主动脉壁间血肿(AIH)15例,穿透性动脉粥样硬化性溃疡(PAU)35例,主动脉夹层(AD)50例(DebackeyⅠ型10例,DebackeyⅡ型15例,DebackeyⅢ型25例),其中,AD合并AIH3例、合并PAU15例,AD同时合并合并IMH3、PAU20例。结论 DSCTA能清晰显示病变特征和累及范围,DSCTA是急性主动脉综合征的重要检查方法。“,”Objective Explore Acute aortic syndrome Dual-source CT angiography (DSCTA)show,to further enhance the awareness of the disease in this category. Methods Col ected 100 Acute aortic syndrome patients checked by DSCTA in our hospital,dominated by axial,combined with a variety of post-processing techniques such as volume rendering technique (VR),part of multiplanar reconst ruc2tion(MRP),curved planar reformation(CPR)andmaximumintensityprojection(MIP)images of recombinant location,size and merge signs of Acute aortic syndrome were retrospectively analyzed.Results In 100 patients,15 cases with aortic intramural hematoma (AIH),35 cases with penetrating atherosclerotic ulcer (PAU),50 cases with Aortic dissection (AD)(10 cases with debackeyⅠtype,15 cases with debackeyⅡtype,25 cases with DebackeyⅢtype),among them,there are 3 cases of AD merge AIH,15 cases of AD merge PAU,20 cases of AD merge IMH and PAU.Conclusion DSCTA can clearly show the lesion characteristics and involving the scope,DSCTA is an important examination methods of Acute aortic syndrome.