DCE MRA对主动脉夹层的诊断价值

目的　评价动态增强磁共振血管成像对主动脉夹层诊断价值及对临床治疗的指导作用。方法　 2 0例不同类型的主动脉夹层患者 ,应用动态增强磁共振血管成像技术扫描 ,并与手术结果对照 ,分析DCEMRA的图像质量及其对血管的显示情况。结果　 2 0例均获得满意图像 ,不但可清晰地显示主动脉夹层的真假腔和内膜片 ,并可确定破口大小、数量及位置以及血流动态情况。结论　动态增强磁共振血管成像是诊断主动脉夹层准确、快速、无创和首选的影像学检查方法 ,具有较高的临床应用价值

Diagnostic Value of Aorta Dissection with DCE MRA(A Report of 20 Cases)

Objective To evaluate the dynamic contrast-enhanced magnetic resonance angiography(DCE MRA)value of definitive diagnosis and typing as well as its roles to clinical management with aortic dissection(AD).Methods 20 patients with different types aortic dissection were examined using DCE MRA and proved by operation.Results The reliable MRA image was obtained in all the 20 cases.The MRA typical appearences were the true and false lumen of AD.The entrance and exit site,true and false channel,and intimal flap can be demonstrated on DCE MRA image.Conclusion DCE MRA is an accurate,quick,non-invasive medical imaging technique and can serve as an initial imaging modality for AD diagnosis.