64排螺旋CT血管成像在成人烟雾病诊断中的价值

Value of 64-slice spiral CT angiography in diagnosis of adult moyamoya disease

目的回顾性分析25例烟雾病(MMD)患者头颅CT血管造影(CTA)影像学特征,探讨头颅CTA检查的价值。方法收集2011年1月至2012年12月期间行头颅CTA检查,诊断为烟雾病患者25例,分析其影像学特点。结果 25例烟雾病患者均为双侧病变及颅底有异常血管网,其中88%异常血管网丰富,12%血管网减少;84%患者有侧支血管形成,16%无侧支血管;烟雾病合并动脉瘤患者占20%。结论 CTA可多方位清楚显示脑底动脉血管闭塞、狭窄、烟雾状毛细血管网、动脉瘤及侧支血管形成,可作为烟雾病的首选影像检查。

Objective To retrospectively analyse 25 cases of MMD patients with head CTA imaging features in order to explore the value of head CTA examination. Methods Twenty-five patients with moyamoya disease by cranial CTA during January 2011 December - 2012 were collected, and their imaging features were retrospectively analyzed. Results All 25 patients showed stenosis or occlusion of the in- ternal carotid arteries or their branches and extensive abnormal basicranial vascular network, 88% of cases had extensive abnormal basicranial vascular network, 12% of cases had fewer; 84% of patients formed collateral vessels, and 16% of patients did not have collateral vessels. The patients of moyamoya disease with aneurysm occupied 20%. Conclusion CTA can clearly show stenosis or occlusion of blood vessels, moy- amoya vascular, aneurysm and collateral vessel, which can be used as the first choice of imaging in examing moyamoya disease.