摘要:目的评价MRI和MRA对主动脉夹层的诊断价值.方法回顾性分析了18例主动脉夹层患者在急慢性期行MRI扫描,包括轴位、矢状位和冠状位成像.其中9例同时行增强MRA.结果18例患者按DeBaKey分型诊断为Ⅰ型4例,Ⅱ型8例,Ⅲ型6例,18例均显示了真假腔及内膜瓣,其中两例为多发假腔,18例中12例显示了真假腔之间的破口(占67%).有3例为多发破口.10例显示主动脉夹层有附壁血栓形成(占56%).结论MRI和MRA对主动脉夹层的诊断有重要价值,且无创伤性,有助于临床及时准确地制定治疗方案.
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