磁敏感加权成像检测脑微出血灶在腔隙性脑梗塞中的应用
周荣超1，宋志仪1，刘锡甫1，王超1，周刚1，倪爱娟2，刘莹1
（1.天津市医院放射科，天津；2.天津市军事医学科学院卫生装备研究所，天津）
摘要：目的探讨磁敏感加权成像（SWI）技术在检测腔隙性脑梗塞患者脑微出血病变的价值。方法回顾性分析腔隙性脑梗塞患者68例，同时分析同期68例健康志愿者作为对照组，共例。2组均行MRI颅脑常规序列、DWI及SWI检查，分析其相关性。结果所有检查者中，SWI发现有脑微出血（CMBs）37例，腔隙性脑梗塞30例，对照组7例；DWI发现有CMBs23例，对照组4例，SWI序列显示CMBs阳性率及数目与DWI及T2WI序列差异均有统计学意义（P＜0.05）。腔隙性脑梗塞严重程度与CMBs数目呈正相关。结论SWI显示CMBs优于DWI及T2WI，且腔隙性脑梗塞严重程度与CMBs数目呈正相关。
关键词：磁敏感加权成像；腔隙性脑梗塞；脑微出血灶
ApplicationofSusceptibilityWeightedImagingintheDetectionofFocalCerebralHemorrhageinLacunarInfarction
ZHOURong-chao1,SONGZhi-yi1,LIUXi-fu1,WANGChao1,ZHOUGang1,NIAi-juan2,LIUYing1
(1.DepartmentofRadiology,theAffiliatedHospitalofTianjinAcademyoftraditionalChinesemedicine,Tianjin,China;2.InstituteofHealthEquipment,TianjinAcademyofMilitaryMedicalSciences,Tianjin,China)
Abstract：ObjectiveToinvestigatethesusceptibilityweightedimaging(SWI)techniqueindetectingcerebrallacunarinfarctioninpatientswithcerebralmicrobleedslesion.MethodsRetrospectiveanalysisof68casesofpatientswithlacunarcerebralinfarction,andanalysisofthesameperiod68casesofhealthyvolunteersascontrolgroup,casesingroup.2underwentconventionalbrainMRIsequence,DWIandSWIexaminations.Thecorrelationwasanalyzed.ResultsAlltheexamination,SWIfoundthatcerebralmicrobleeds(CMBs)in37cases,30casesoflacunarcerebralinfarction,7casesofthecontrolgroup;DWICMBsisfoundin23cases,4casesinthecontrolgroup,thepositiverateofCMBsandDWIandthenumberofT2WIsequenceandSWIsequenceshowedthattherewerestatisticallysignificantdifferences(P0.05).ThepositivenumberoflacunarcerebralinfarctionandtheseverityofCMBs.ConclusionTheSWIshowthatCMBsissuperiortoDWIandT2WI,andapositivenumberoflacunarcerebralinfarctionandtheseverityofCMBs.
Keywords：Magneticsusceptibilityweightedimaging;Lacunarinfarction;Brainmicrobleeds
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