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烟雾病以颈内动脉床突上段和大脑前中动脉近段进行性阻塞为特征。这些血管阻塞伴随着广泛实质内侧支供血:基底节“烟雾血管”,软膜蛛网膜和贯穿硬膜的侧支血管形成。以前主要靠常规血管造影诊断,作者研究了三维CT血管成像(CTA)的诊断价值。7例病人(9～55岁)行三维CTA和常规脑血管造影,两种造影之间隔1～34天。4例三维CTA使用快速扫描,3例使用螺旋扫描。扫描前先静脉团注一
Moyamoya disease is characterized by occlusive occlusion of the upper part of the internal carotid artery and the proximal middle cerebral artery. These vascular obstructions are accompanied by extensive parenchymal medial branch blood supply: the basal ganglia “smog vessels”, the arachnoid membrane and the perinuclear lateral branch vessels. Previously mainly rely on conventional angiography diagnosis, the authors studied the diagnostic value of three-dimensional CT angiography (CTA). Seven patients (9-55 years old) underwent three-dimensional CTA and conventional cerebrovascular angiography. The interval between the two procedures was 1 to 34 days. Four cases of three-dimensional CTA using rapid scanning, three cases using spiral scan. Before the scan intravenous group note one