【摘要】 目的探讨64排螺旋CT血管造影(MSCTA)在烟雾病诊断中的应用价值。方法19例烟雾病患者均行CT平扫和MSCTA检查,在工作站上做容积再现VR)、最大密度投影MIP)和多平面容积重建(MPR)。结果14例脑出血,4例脑梗死,1例大脑发育不良,MSCTA可清晰显示狭窄、闭塞的颈内动脉、颅底异常血管网,其中双侧颈内动脉闭塞12例,单侧颈内动脉闭塞伴同侧大脑后动脉狭窄1例,单侧大脑中动脉闭塞6例,侧支血管表现为相应血管及其分支的粗大、增多、迂曲延长。结论MSCTA可以清晰显示烟雾病血管改变特点,检查方法简单、快捷,VR重建能显示狭窄血管的三维空间关系,较好地显示颅底烟雾状血管,而MIP和MPR在显示细小血管方面较好。CTA是怀疑此病的首选无创筛查方法,为手术治疗提供参考。更多还原

【Abstract】 Objective To explore the application of 64 slices spiral CTA in diagnostic practice for Moyamoya disease(MMD).Methods CT scan and CTA reconstruction were performed for total 19 cases of MMD,volume rending(VR),maximum density projection(MIP)and multiplanar reconstruction(MPR) were conducted for above data at work station.Results Fourteen cases of cerebral hemorrhage,4 cerebral infarction and 1 cerebral displasia were detected.Stenotic or occlusive internal carotid artery(ICA),abnormal vascular net of anastomosis at skullbase were fully revealed by CTA,in which bilateral ICA occlusion were confirmed in 12 cases,unilateral ICA occlusion combined with posterior cerebral artery stenosis in 1,unilateral middle cerebral artery occlusion in 6,collateral branches were developed in relative territory. Conclusion Characteristic features of vascularity of MMD might be showed clearly by CTA.3D of stenotic artery,collateral vessel can be revealed well by VD,small size artery be shown by MIP and MPR.CTA should be first choice of screening for suspect cases of MMD.更多还原