3.0T及1.5T磁共振血管成像对烟雾病诊断价值比较  

Initial Comparison of 3.0T and 1.5T Time-of-Flight MR Angiography in the Diagnosis of Moyamoya Disease

作　　者：侯进[1] 黄凡衡[1] 杨建明[1] 全显跃[1] 

机构地区：[1]南方医科大学附属珠江医院影像诊断科,广州510282

出　　处：《放射学实践》2009年第5期469-471,共3页Radiologic Practice

摘　　要：目的:分析烟雾病1.5T及3.0T磁共振血管造影(MRA)表现,以数字减影血管造影(DSA)为金标准比较两者对烟雾病的诊断价值。方法:回顾性分析22例烟雾病患者MRA及DSA表现,其中9例行1.5TMRA检查、13例行3.0TMRA检查,22例均行DSA检查,对两者显示的基底区侧支血管行4级评分,并对结果进行比较分析。结果:9例1.5TMRA显示侧支血管3分1例、2分4例、1分3例、0分1例,13例3.0TMRA显示侧支血管3分7例、2分6例,两者有统计学差异;3.0TMRA与DSA间亦有统计学差异。结论:3.0T较1.5TMRA可以更好显示基底节侧支血管,但仍不能取代DSA检查。Objective：To study the manifestations of magnetic resonance angiography （MRA） with 1.5T/3.0T MR scan in patients with Moyamoya disease （MMD）, taking digital subtraction angiography （DSA） as gold standard, and to compare their values of diagnosis. Methods： Of these 22 patients with MMD diagnosed by DSA, 9 patients had MRA with 1.5T MR scan, 13 patients with 3.0T. Collateral blood vessels within basal area displayed by MRA and DSA were scored as a 4 point scale, the results of these two modalities were compared and analyzed retrospectively. Results： Of the 9 patients having 1.5T MRA,visualization of basal area collateral blood vessels were scored as 3 （1 patient） ,2 （4 patients） ,1 （3 patients） and 0 （1 patient）. Of the 13 patients having 3.0T MRA,the scores were 3 （7 patients） and 2 （6 patients）. There was statistical difference between the two modalities. However, statistical difference was also existed in the results of displaying basal area collateral blood vessels between 3.0T MRA and DSA. Conclusion： Basal area collateral vessels in Moyamoya disease were depicted with 3.0T MR angiography better than that with 1.5T, yet MRA still can not replace DSA in showing vessels of MMD.

关 键 词：脑底异常血管网病 磁共振成像 血管造影术 数字减影 

分 类 号：R743.4[医药卫生—神经病学与精神病学] R445.2[医药卫生—临床医学]