【摘要】 目的　探讨主动脉夹层的MRI表现及其诊断价值。方法　对2 3例主动脉夹层的MRI表现进行回顾性分析。结果　2 3例显示主动脉内膜片及其分隔的真假腔,18例显示内膜破口和再破口,假腔内附壁血栓形成11例,合并胸腔积液1例。结论　MRI对发现主动脉夹层内膜片及真假腔,判断病变部位、程度和主要血管分支的受累情况均有明显优势,是诊断主动脉夹层的最佳影像诊断方法。更多还原

【Abstract】 Objective To evaluate the MRI manifestations and its diagnostic effiency in the aortic dissection. Methods 23 patients with aortic dissection were studied by MRI. Results Specific signs emerged as true and false double aortic lumen in 23 patients, endodermis injured in 18 patients, intraluminal thrombus in 11 patients and 1 person with thorax. Conclusions MRI has its advantages in detecting true and false double aortic lumen, judging morbid position and degree. MRI is a better method in diagnosising aortic dissection.更多还原