磁共振血管成像对烟雾病的诊断价值探讨

Exploration of Diagnostic Value of MRA for Moyamoya Disease

目的探讨磁共振血管成像(MRA)对烟雾病的诊断价值。方法应用S iem ens 1.0T超导型MR I系统行三维时间飞跃法(3D-TOF)MRA,分析70例烟雾病的MRA表现。结果MRA发现双侧颈内动脉末端狭窄闭塞49例;单侧颈内动脉狭窄闭塞21例;大脑前、中动脉狭窄闭塞70例;大脑后动脉狭窄闭塞8例;血管跳跃征18例;颈外动脉分支代偿性扩张19例,大脑后动脉代偿扩张43例。脑底异常烟雾血管70例。结论MRA是一种无创伤性诊断烟雾病的重要方法。

Objective To explore the diagnostic value of magnetic resonance angiography （MRA） for Moyamoya disease. Methods 3D - TOF MRA was done with Siemens 1.0T MR Unit, and MRA appearances were analyzed for the 70 cases of Moyamoya disease. Results In the 70 patients with Moyamoya disease,there were 49 cases with bilateral terminal stenosis or occlusion of the internal cartoid arteries, and 21 cases with unilateral terminal internal cervical arteries stenosis or occlusion, and all the 70 cases with stenosis or occlusion of the anterior cerebral arteries and middle cerebral arteries, and 8 cases with stenosis or occlusion of the posterior cerebral arteries. There were 18 cases with＂ artery leaping＂ sign, 19 cases with expanded collateral vessels from external carotid artery,43 cases with expanded collateral vessels from posterior cerebral artery, and all the 70 cases with abnormal Moyamoya vessels on the cerebral basement. Conclusion MRA is an important noinvasive method for Moyamoya disease diagnosis.