【摘要】 目的对比分析X线、MSCT及MRI在主动脉夹层(AD)中影像学特征,并评价其临床运用价值。方法 30例经手术或行DSA造影证实的AD患者,对其X线、MSCT及MRI检查影像资料进行分析,总结归纳其影像特点。结果 X线仅见AD的间接征象,而MSCT和MRI均能不同程度地显示真假两腔、内膜破口、内膜片及附壁血栓。结论 X线对AD只能提示诊断,而MSCT和MRI可作特异性诊断,并且MRI在显示AD的破口位置、无钙化的内膜片及附壁血栓时均优于MSCT,但对内膜及主动脉壁钙化和急危重者的检查MSCT优于MRI。更多还原

【Abstract】 Objective To compare the analysis of the imaging features and to evaluate clinical values of X-ray,MSCT and MRI in aortic dissection(AD).Methods X-ray,MSCT and MRI findings of confirmed AD in 30 cases by surgery or DSA angiography were analyzed,and the characteristics were summarized.Results X-ray shows only indirect signs of AD,while MSCT and MRI can show true or false lumen,intimal tear,intimal flap and thrombus of AD in different degrees.Conclusion X-ray can only prompt the diagnosis of AD,but MSCT and MRI can determine specific diagnosis of AD.MRI shows that the intimal tear,no calcification of the intimal flap and mural thrombus of AD are superior to MSCT,but in calcification of intimal and aortic wall of AD and with emergency patients,MSCT is superior to the MRI.更多还原