MRA诊断Moyamoya病10例分析

MRA in diagnosis of Moyamoya disease:A report of 10 cases

目的 :探讨磁共振血管成像 (MRA)对Moyamoya病的诊断价值。 方法 :10例患者均行MRI及MRA检查 ,并对其结果进行分析。结果 :MRI显示脑梗死 8例 ,脑出血 1例 ,1例MRI未见异常。MRA表现为颈内动脉、大脑中动脉、大脑前动脉的狭窄或闭塞 ,均伴有脑底部异常血管网 (Moyamoyavessel)形成。 结论 :MRA是诊断Moyamoya病的一种准确有效的非创伤性的影像学方法 ,并适用于儿童及对高危人群进行筛选和对Moyamoya病患者进行长期随访。

Objective:To explore the value of magnetic resonance angiography(MRA) in diagnosis of Moyamoya disease.Methods:Ten patients with Moyamoya disease were examined by MRI and MRA.All the clinical features,MRI and MRA results were analyzed.Results:Cerebral infarction in 8 patients and intracerebral hemorrhage in 1 patient were demonstrated by MRI and the findings on MRI in 1 patient was normal.Stenosis or occlusion of internal carotid artery(ICA),proximal portions of middle cerebral artery(MCA) or anterior cerebral artery(ACA),and development of Moyamoya vessels of cerebral base were demonstrated by MRA.Conclusions:MRA is an accurate and effective noninvasive method for the diagnosis of Moyamoya disease.As a screening test for high risk groups and long term follow up angiographic study,especially for children,MRA is an ideal examination.