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目的:探讨CT平扫、增强扫描及脑血管造影对烟雾病的诊断价值。材料与方法:5例病人均行CT平扫,2例增强扫描。3例行CT脑血管造影检查。回顾性分析烟雾病的CT影像学特征。结果:CT检查平扫:右额顶叶脑实质出血1例,蛛网膜下腔出血2例,脑梗塞2例。2例CT增强扫描:脑底动脉环显影不良,基底节大脑半球增粗迂曲血管影。3例CT脑血管造影:双侧颈内动脉前床突上段动脉闭塞1例,双侧大脑前中动脉多发闭塞2例,脑底烟雾状异常血管网及大量的侧枝循环形成3例。结论:烟雾病患者行头颅CT检查主要显示脑实质的病变,头颅增强CT仅能显示部分血管病变,对典型病例可作出诊断,对轻度病变的诊断尚有一定度难度。多排CT脑血管造影不仅能够清晰显示颈内动脉内段基底动脉环各血管闭塞、狭窄的部位、形态、管壁状况及狭窄程度,还能清晰显示增多迂曲的脑底部的异常血管网,可作为烟雾病的首选检查方法。
Objective: To investigate the value of CT plain scan, enhanced scan and cerebral angiography in the diagnosis of moyamoya disease. Materials and Methods: Five patients underwent CT scan and two patients underwent enhanced scan. 3 routine CT cerebral angiography. Retrospective analysis of moyamoya disease CT imaging features. Results: CT scan plain scan: 1 case of parietal lobe parietal hemorrhage, 2 cases of subarachnoid hemorrhage and 2 cases of cerebral infarction. 2 cases of CT enhanced scan: bad cerebral artery ring imaging, basal ganglia thickening tortuous blood vessels. 3 cases of CT angiography: bilateral anterior carotid artery occlusion of the superior mesenteric artery occlusion in 1 case, bilateral occlusion of the anterior cerebral artery occlusion in 2 cases, abnormal brain network vascular network and the formation of a large number of collateral circulation in 3 cases. Conclusion: The head CT examination of moyamoya disease mainly shows the brain parenchymal lesions. The cranial enhanced CT can only show partial vascular lesions. The typical cases can be diagnosed, but there is still some difficulty in the diagnosis of mild lesions. Multislice CT angiography can not only clearly show the vascular occlusion of the internal carotid artery in the basilar artery, stenosis of the site, shape, wall conditions and stenosis, but also clearly shows increased tortuous cerebral vascular abnormalities at the bottom of the network can be As the preferred method of detection of moyamoya disease.