目的 探讨超声心动图及CTA对 主动脉夹层的诊断价值。方法 收集自 2014年5月至2016年5月在我院经手术确 诊的51例主动脉夹层病例，术前均做过 超声心动图及CTA检查的病例进行分析， 评价两种影像检查方法在主动脉夹层诊 断中的价值。结果 本组51例患者中， DeBakeyⅠ型的病例有14例，DeBakeyⅡ 型的病例有4例，DeBakeyⅢ型的病例有 33例。超声心动图对所有病例的检出率 是90.2%(46/51)，而CTA对所有病例的检 出率是96.1%(49/51)，两者比较差异无 统计学意义(P＞0.05)。超声心动图漏诊 的5例病例中，1例是DeBakeyⅠ型，4例 是DeBakeyⅢ型；CTA漏诊的2例病例均是 DeBakeyⅡ型的。结论 心脏超声及CTA检 查作为两个独立的检查手段对主动脉夹层 的诊断具有非常重要的价值，在实际工作 中将两者联合使用必将提高对主动脉夹层 的诊断水平，为临床医生提供更为准确的 治疗参考。

Objective To explore the value of transthoracic echocardiography (TTE) and CTA in the diagnosis of aortic dissection. Methods Collected 51 cases of aortic dissection confirmed by surgery in our hospital from May 2014 to May 2016 , preoperative are done cases of echocardiography and CTA examination were analyzed, and the evaluation of two methods of imaging in the diagnosis of aortic dissection. Results 51 cases patients, DeBakey typeⅠcases have 14, DeBakey typeⅡcases have 4, DeBakey type Ⅲ cases with 33. Echocardiography detection rate was 90.2% (46/51) of all cases, the CTA for all case detection rate was 96.1% (49/51), compare the differences between no statistical significance (P>0.05). Echocardiography in diagnosis of 5 cases, 1 case was DeBakey typeⅠ, 4 cases is DeBakey type Ⅲ. CTA in diagnosis of 2 cases were DeBakey type Ⅱ. Conclusion Transthoracic echocardiography and CTA inspection as two independent method has very important value to the diagnosis of aortic dissection, in the actual work will be a combination of both will improve the level of the diagnosis of aortic dissection and reference for clinical doctors to provide more accurate treatment.