| 李松,罗松,杨筠,张益琼,郭金鸿,胡萍.低场磁共振三维血管造影在主动脉夹层中的应用研究[J].中国医学影像技术,2008,24(s1):104~106 |
| 低场磁共振三维血管造影在主动脉夹层中的应用研究 |
| Research of 3D angiography of low field MR in dissection of aorta |
| 投稿时间：2007-11-28 修订日期：2008-07-31 |
| DOI： |
| 中文关键词: 主动脉 低场强 磁共振血管造影 |
| 英文关键词:Aorta Low magnetic field Magnetic resonance of angiography |
| 基金项目: |
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| 中文摘要: |
| 目的 分析评价低场强血管造影(LF-3D-CE MRA)在主动脉夹层诊断中的价值。 方法 在0.35T低场MR仪上,对19例主动脉夹层的患者进行常规扫描后,采用梯度回波序列(FE),动态增强扫描,原始图像做最大投影密度(MIP)三维(3D)重建,并对图像质量和病变影像表现进行分析。 结果 图像质量:优 12例(63%)、良 6例(32%)、差 1例(5%)。本组主动脉夹层19例,按Debaky分型:Ⅰ型5例(5/19),Ⅱ型1例(1/19),Ⅲ型13例(13/1 |
| 英文摘要: |
| Objective To analyze and evaluate the value of the LF-3D-CE MRA in diagnosis of dissection of aorta. Methods To re-establish the original image from maximum projection density (MIP) three dimension (3D) and analyze the quality and the manifestation of the process images under 0.35T low MR, by using gradin-echo (GE) and dynamic state enhancement scanning, after routine scanning 19 patients who have dissection of aorta. Results Image quality: excellent: 12(63%); good: 6 (32%); difference: 1 (5%). Ninteen patients with dissection of aorta in this group. According to Debaky typing: Debaky-I: 5 (5/19); Debaky-II: 1 (1/19); Debaky-III: 13 (13/19). The main complications to be discovered by routine scanning are thoracic cavity hydras, aortic aneurysm, side aortic exudation and thrombosis. Conclusion LF-3D-CE MRA can directly display the "double cavity"sign and separating tunica intima lamellar, and also display three dimensional morphous of the whole pathological change parts. But for supplying reliable evidence to clinical treatment perscription, it should be combined together with routine scanning images when observing the vicinity structure and peripheral organs. |
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