摘要
目的探讨急性主动脉夹层的MRI表现及诊断价值。方法采用超导型MR扫描机对31例主动脉夹层作不同序列技术的MR成像检查,介绍一种快速平衡稳态进动序列成像检查。结果主动脉夹层诊断准确率100%,磁共振表现为(1)不同信号双腔影;(2)剥离的内膜瓣;(3)破裂口;(4)血栓性主动脉夹层。结论磁共振成像对主动脉夹层的确诊具有重要价值。早期诊断、治疗是降低死亡率的关键。
Objective To investigate MRI findings and diagnostic value of aortic dissection. Methods 31 patients with acute aortic dissection were examined using Magnetic Resonance Imaging by applicaion of different pluse sequence techniques at Technicare 0.6 TandGE 1.5T Signa Excite Twinspeed. A Fast Imaging Employing Steady State Acquisition,（FIESTA）pulse sequence was introduced at 1.5T Signa Excite Twinspeed. Results The accuracy of MRI diagnosis rate was 100%. The MRI could demonstrate features included：（1）Double lumen with different attenuation values; （2） intimal flapserating the two chambers; （3）rupture of the bloodvessel; （4）thrombosed dissecting. Conclusion MRI is valuable for the diagnosis of acute aortic dissecting. Early diagnosis and treatment may be key to reduce the mortality rate.
出处
《中国CT和MRI杂志》
2008年第5期17-19,共3页
Chinese Journal of CT and MRI
