摘要
目的比较脑血管畸形病变(CVM)患者CT及MRI影像学特点并分析其临床应用价值。方法选取2015年10月至2018年10月我院CVM患者临床资料70例进行回顾性分析,根据临床诊断结果分为颅内海绵状血管瘤(CH)、静脉性血管瘤(CVA)、动静脉畸形(AVM)及颅内毛细血管扩张症(ICT)等4类,分别比较CT和MRI检查这4种疾病的图像特点。结果CH患者CT平扫为高或等密度影,MRI扫描T1WI以及T2WI均可为高或低信号,CT和MRI增强轻度强化;CVA患者CT平扫可见高密度出血病灶,增强扫描可发现点状、线样或弧形高密度影向引流静脉汇聚,MRI检查显示血管流空影,伴周围脑组织异常强化;AVM患者CT平扫为稍高或等密度肿块,增强扫描可见供血动脉增粗、扩张或迂曲,同时可见静脉窦扩张,MRI可见团块、结节或蚯蚓状血管,呈血管流空征象,T1WI及T2WI均呈明显低信号影;ICT患者CT平扫显示斑片状低密度或混杂密度缺血性病灶,增强扫描可见高信号血管影,MRI表现为T1WI及T2WI结节状或斑片状低或稍高密度影,增强扫描呈明显均匀强化。结论CT和MRI均是CVM常用检查方法,对CH、CVA、AVM及ICT病灶位置、大小、形态及周围组织受累情况等解剖信息均具有良好显示效果,对CVM诊断具有重要参考意义.
Objective To compare the CT and MRI imaging features of patients with cerebral vascular malformation (CVM) and analyze their clinical application value.Methods The clinical data of CVM patients from October 2015 to October 2018 in our hospital were retrospectively analyzed.According to the clinical diagnosis results,they were divided into four types of intracranial cavernous hemangioma (CH),venous hemangioma (CVA),arteriovenous malformation (AVM) and intracranial capillary telangiectasia (ICT), and the CT and MRI imaging features of the four diseases were compared.Results CT plain scan of CH patients showed high-density or equal-density shadows,and MRI scan showed high or low signal on T1WI and T2WI,and enhanced scans of CT and MRI showed mild enhancement.CT plain scan of CVA patients showed high-density hemorrhagic lesions,and enhanced scan found spot-like,linear or arc-shaped highdensity shadows converged in draining vein,and MRI examination showed vascular signal voids and peripheral brain tissue abnormal enhancement.CT plain scan of AVM patients showed slightly high-density or equal-density masses,and enhanced scan showed feeding artery thickening,dilatation or distortion and venous sinus dilatation,and MRI showed mass,nodular or earthworm-like vessels with vascular signal voids signs,and significantly low signal shadows on T1WI and T2WI.CT plain scan of ICT patients showed patchy low-density or mixed-density ischemic lesions,and enhanced scan showed high-signal vascular shadows,and MRI showed nodular or patchy low-density or slightly highdensity shadows on T1WI and T2WI,and enhanced scan showed significantly uniform enhancement.Conclusion Both CT and MRI are commonly used examination methods for CVM.They have good display effects on the location,size,shape and surrounding tissue involvement of CH,CVA,AVM and ICT lesions,and have important reference significance for CVM diagnosis.
作者
李岚
郭海志
李跃
付信飞
LI Lan;GUO HAI-zhi;LI Yue(Department of Neurology,The First People's Hospital of Ziyang,Ziyang 641300,Sichuan Province,China)
出处
《中国CT和MRI杂志》
2019年第10期23-25,78,共4页
Chinese Journal of CT and MRI
基金
四川省卫生厅科研课题(131919)
关键词
脑血管畸形
影像学检查
CT
MRI
数字减影血管造影
Cerebral Vascular Malformation
Imaging Examination
CT
MRI
Digital Subtraction Angiography
