基于7.0T磁共振成像及体素形态学测量对脑小血管病灰质体积变化及其与认知障碍的相关性研究  

Correlation between gray matter volume changes and cognitive impairment in cerebral small vessel disease based on 7.0T magnetic resonance imaging and voxel-based morphometry analysis

作　　者：范雪怡 王茜尧 梁骊 杨华[2] 李智信 张紫豪 钱海蓉[2] Fan Xueyi;Wang Qianyao;Liang Li;Yang Hua;Li Zhixin;Zhang Zihao;Qian Hairong(School of Medicine,South China University of Technology,Guangzhou 510006,China)

机构地区：[1]华南理工大学医学院,广州510006 [2]解放军总医院第六医学中心神经内科 [3]中国科学院生物物理研究所脑与认知科学国家重点实验室

出　　处：《中国脑血管病杂志》2023年第12期793-802,共10页Chinese Journal of Cerebrovascular Diseases

基　　金：首都卫生发展科研专项(首发2020-2-5115)。

摘　　要：目的应用7.0T MRI及基于体素的形态学测量(VBM)探索脑小血管病(CSVD)认知障碍患者灰质体积改变脑区及与其相关的受损认知域。方法本研究回顾性连续纳入2021年9月至2023年6月“脑深部髓静脉形态与脑小血管病认知障碍的相关性研究”(注册号:ChiCTR2100045136)中数据,按照纳入与排除标准将CSVD伴认知障碍患者作为CSVD组,与CSVD组年龄、性别、受教育年限相匹配的健康者作为对照组。蒙特利尔认知评估(MoCA)量表(北京版)评分<26分为认知功能障碍。使用MoCA量表、数字广度测验(DST)、数字符号转换测验(DSST)、连线测试(TMT)A部分、词语流畅性测验(VFT)、波士顿命名测验(BNT)及听觉词语学习测验(AVLT)对所有受试者进行认知功能评估。采用7.0T MR系统对受试者进行全脑多模态图像采集,采集T1加权三维磁化强度预备梯度双回波序列(T1WI-MP2RAGE)数据用于VBM分析。比较两组受试者一般资料、认知功能评分、脑结构相关指标的差异。使用VBM分析两组灰质体积的差异,并提取CSVD组差异脑区的灰质体积与认知功能评分进行相关性分析。结果(1)对照组18例,年龄55~70岁;CSVD组19例,年龄57~70岁。两组受试者年龄、性别、受教育程度、体质量指数、冠心病史、高脂血症病史、吸烟史、饮酒史、总胆固醇、三酰甘油、低密度脂蛋白胆固醇、高密度脂蛋白胆固醇的差异均无统计学意义(均P>0.05);CSVD组高血压病史及糖尿病史占比高于对照组,组间差异均有统计学意义(12/19比5/18,7/19比0;均P<0.05)。(2)CSVD组MoCA量表[22.0(20.0,23.0)分比27.0(26.0,28.0)分,Z=-5.242]、DSST[(18±9)分比(40±4)分,t=5.212]、DST[(10.6±2.5)分比(13.9±2.0)分,t=4.364]、VFT[(38±11)分比(47±8)分,t=3.224]、AVLT-即刻记忆[(13±3)分比(21±4)分,t=6.877]、AVLT-短延迟回忆[(3.4±2.5)分比(6.9±2.2)分,t=4.555]、BNT[(22.7±3.6)分比(27.0±2.1)分,t=4.357]评分均低于对照组,执行能力�Objective To explore the correlation between changes of gray matter volume and related cognitive impairment domains in patients with cognitive impairment of cerebral small vessel disease(CSVD)based on 7.0T magnetic resonance imaging(MRI)and voxel-based morphometry(VBM).Methods All subjects were recruited from the study on Correlation between Cerebral Deep Medullary Vein Morphology and Cognitive Impairment due to Cerebral Small Vessel Disease(registration No.:ChiCTR2100045136)from September 2021 to June 2023.We retrospectively enrolled CSVD patients with cognitive impairment as CSVD group and healthy controls with matched age,gender and education level as control group according to inclusion and exclusion criteria.Montreal cognitive assessment(MoCA)scale(Beijing version)score<26 was divided into cognitive impairment.All subjects was assessed with MoCA,digit span test(DST),digit symbol substitution test(DSST),trail making test-A(TMT-A),verbal fluency test(VFT),Boston naming test(BNT)and auditory verbal learning test(AVLT).All subjects underwent 7.0T brain MRI scan to acquire T1-weighted three-dimensional magnetization prepared 2 rapid gradient echo(T1WI-MP2RAGE)for VBM analysis.General data and above cognitive function scores were compared between 2 groups.VBM analysis was used to compare the gray matter volume(GMV)between 2 groups and get mean GMV of significant brain regions of CSVD to explore the correlation between regions and cognitive function scores.Results(1)There were 18 individuals in control group,aged 55-70 years,and 19 individuals in CSVD group,aged 57-75 years.There was no significant difference in age,gender,education,body mass index,history of coronary heart disease,history of hyperlipidemia,smoking,drinking,total cholesterol,triglyceride,low density lipoprotein and high density lipoprotein between the two groups(all P>0.05).But the proportion of hypertension and diabetes history in the CSVD group was higher than control group,and there were significant differences between the two groups(12/19 vs.5/

关 键 词：大脑小血管疾病 认知障碍 基于体素的形态学测量 灰质体积 7.0T磁共振成像 

分 类 号：R743[医药卫生—神经病学与精神病学]