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时间:2020-06-04
《扩散张量成像评价轻度阿尔茨海默病患者脑白质微观结构损害及内侧颞叶萎缩.pdf》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、中国医学影像技术2012年第28卷第11期ChinJMedImagingTechnol,2012,Vol28,No11·1961·◆:◆中枢神经影像学DiffusiontensorimagingassessmentofwhitemattermicrostructureandmedialtemporallobeatrophyinpatientswithmildAlzheimerdiseaseSHIShah,YUANHui—shu,LIAOJing,WANGHua—li,Xin(1.DepartmentofRadiology,PekingUniversityThird
2、Hospital,Beijing100191,China;2.KeyLaboratoryforMentalHealth,MinistryofHealth,PekingUniversityInstituteofMentalHealth,Beijing100]91,China)[Abstract]0bjectiveToevaluatewhitematterintegrityandmedialtemporalatrophy(MTA)inpatientswithmildAhheimerdisease(AD)byusingDTIandMTAvisualscale,andto
3、investigatetheirrelationshipwithcognitivefunction.MethodsForty-foursubjects,including23mildprobableAD(ADgroup)and21normalelders(NCgroup)wereexam—inedusingDTItechnologyandROImethod.Meandiffusivity(MD)andpartialFAvalueweremeasured.MedialtemporallobeatrophywasassessedwithMTA.Independents
4、amplet-testandcanonicalcorrelationanalysiswereused.ResultsComparedtoNCgroup,FAvalueinbilateralparahippocampal,posteriorcingulate,inferiorlongitudinalfasciculus,inferi—orfronto—occipitalfasciclesdecreasedsignificantly,whileMDvalueofbilateralparahippocampal,posteriorcingulate,infe—riorf
5、ronto—occipitalfascicles,andleftinferiorlongitudinalfasciculus,leftuncinatefasciculusincreasedsignificantlyinADgroup.MedialtemporallobeatrophyinmildADgroupwasobviousthaninNCgroup.PartofDTIindexesandbilateralMTAscorescorrelatedwithcognitiveperformance.ConclusionDTIcandetectwhitemattera
6、bnormalitiesinmildADpa—tients,andMTAvisualscalecandistinguishmildADfromnormalcontrols.CombinationofthesetwomethodscanprovidediagnosticinformationformildAD.[Keywords]Alzheimerdisease;Diffusiontensorimaging;Medialtemporalatrophy;Cognition扩散张量成像评价轻度阿尔茨海默病患者脑白质微观结构损害及内侧颞叶萎缩史珊,袁慧书¨,廖晶,王华丽。
7、,于欣(1.北京大学第三医院放射科,北京100191;2.北京大学精神卫生研究所卫生部精神卫生学重点实验室,北京100191)[摘要]目的采用DTI和内侧颞叶萎缩(MTA)视觉评分评价轻度阿尔茨海默病(AD)患者脑白质微观结构改变及其MTA状况,并观察两者与认知功能的关系。方法运用DTI技术ROI测量方法对轻度AD患者23例(AD组)及正常老年人21名(NC组)的16个ROI进行平均扩散率(MD值)及部分FA值测量,同时用MTA视觉评分方法对MTA状况进行评估,采用独立样本t检验及典型相关分析观察两者与认知功能的关系。结果与NC组对比,AD组双侧海马旁回、双侧后扣
8、带回、双侧
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