低场强MRI对主动脉夹层的诊断价值

Usefulness of low field intensity MRI for detecting the aortic dissection

目的评价低场强磁共振成像对主动脉夹层的诊断价值。方法对16例主动脉夹层在低场强MRI自旋回波(SE)序列和梯度回波(GRE)表现进行回顾性分析总结,其中,6例经手术病理证实。结果16例均能清晰显示病变的范围、夹层起始部位、内膜片、真假腔,6例假腔内显示血栓。结论低场强MRI作为一种无创性检查能对主动脉夹层作出准确及时的诊断。

Objective To evaluate the value of low field intensity MRI for detecting the aortic dissection. Methods Sixteen patients with aortic dissection, of them, b cases were cmffirmed by operation and pathology underwent low field intensity MIR imaging using spin echo （SE）and gradient echo（GRE）sequences. MRI findings in all patients were analyzed retrospectively. Results Low field intensity MRI clearly demonstrated the range, site, intimal flap and true and false lumen in all patients. The thromhus in false lumen were found in 6 cases. Conclusion As a non - invasive examination, low field intensity MRI can accurately and timely diagnose the aortic dissection.