颈部血管狭窄性病变MRA检查的初步经验  

THE MR ANGIOGRAPHY OF STENOTIC VASCULAR DISEASES IN CERVIX

作　　者：唐光才[1] 陈祖望[2] 周康荣[2] 曾维新[2] 叶建荣[2] 陈福真[2] 杨培强[2] 沈继章[2] 陈财忠[2] 施伟斌[2] 

机构地区：[1]泸州医学院附属医院CT室,646000 [2]上海医科大学附属中山医院

出　　处：《泸州医学院学报》1998年第2期100-103,共4页Journal of Luzhou Medical College

摘　　要：目的：探讨颈部血管狭窄性病变MRA评价的价值与限度。方法：临床拟诊颈动脉硬化性狭窄13例，多发性大动脉炎3例，行2DPC冠状面定位成像后，作2DDTOF成像，MIP重建。所有病例2周内都作了DSA。血管狭窄按ECST方法计算，分四级。结果：MRA评估正常或轻度狭窄的准确度达96％，只3％的血管过高评估为中度狭窄；重度狭窄及闭塞病变的准确度都达到100％，无一例高估或低估。2例中度狭窄有1例低估。结论：MRA是一种很有用的评估颈部血管狭窄性病变的术前检查方法。但目前MRA尚不能完全代替DSA。Objective:To study the usefulness and limitation of MR angiography(MRA)of stenotic vascular diseases in cervix.Metheds:13 cases of clinically suggested carotid carteries sclerotic stenosis and 3 cases of Takayasu arterilitis were studied by 2D TOF MRA with GE Signa 1. 5T MR system.MIP was used for reconstruction.DSA was performed on all the cases without excoption within two weeks.The degree of stenosis was calculated with ECST methed and graded into four types.Results:The accuracy of Ⅰ,Ⅱ，Ⅲ, Ⅳdegree vascular stenosis evaluated by MRA was 96%, 100%,100% respectively, while the Ⅱdegne stenosis had some false negative results.Conclusion:This preliminary study suggests that MRA may be used as useful screening method of carotid stenosis prior to endarterectomy. But it can not completely substitute for DSA up till now.

关 键 词：颈动脉狭窄 磁共振血流成像 MRA 诊断 

分 类 号：R543.404[医药卫生—心血管疾病] R445.2[医药卫生—内科学]