主动脉夹层磁共振成像研究

Study of MRI in The Aortic Dissection

本文对２３例经ＭＲ自旋回波序列和梯度回波序列诊断为主动脉夹层患者进行了研究，探讨了不同序列及不同体位对观察主动脉夹层内膜片、破口位置、分支血管受累情况、区分真腔和假腔的诊断价值。并分析了ＭＲＩ的局限性。作者认为，ＭＲＩ是诊断主动脉夹层首选和最好的诊断方法，对主动脉夹层的临床治疗具有非常重要的指导意义。

Twenty-three patients with aortic dissection that diagnosed by using spin echo and gradient echo sequences of MR were studied.We discussed the diagnostic value of different suquences and positions of MR for visualizing the intimal flap,the site of tear,origins of aortic branches and differentiating the true lumen from the flase.In our opinion,although MRI has some limitations,it is the first choice and the best method for the diagnosis of aortic dissection,it has importent significance for the management of dissection.