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1、佳木斯大学临床医学硕士专业学位论文Applicationof3.0TMRsusceptibilityweightedimaginginthe
diagnosisofcerebralmicrobleedsAbstractObjective:Toanalysisimagingfindingandtheimagingmechanismofcerebralmicrobleedsin3.0TMRISusceptibilityWeightedImaging,Toinvestigatethevalueofsusceptibilityweightedimaginginthediagnosisofc
2、erebralmicrobleeds,provideimagingreferenceforclinicaldiagnosisanddifferentialdiagnosis.Methods:40subjects,ForeachsubjectunderwentconventionalMRIsequencesandmagneticheadsensitivescanningsequence,Afterimagingfindings,clinicalmanifestationsandhistoryofdiagnosed15patientswithcerebralmicrobleeds257
3、positivecasesofcerebralhemorrhagemicrolesions,Accordingtothelesionimagingfindingsweredividedintotwogroups:Uniformsetofsignalsandmixedsignalgroup;Accordingtolesionsizeinto10groups:≤1.5mmasagroup,≥5.5mmasagroup,1.5mmto5.5mmfora0.5mmbetweeneachgroup;Accordingtotheonsetofthepositionintothreezones:
4、Cortical-subcorticalregion(A),thalamus-basalganglia(B)andinfratentorialregion(C).SPSS13.0softwarepackageanalyzedata,Summarizesthecharacteristicsandlawsofthelesions,analyzethepossiblecausesandmechanism,andtoexploretherelationshipbetweenimagingfindingsandlesionsizeandlocationofonset.Theresult:25
5、7casesofcerebralhemorrhagelesionsshowedmicro-circularcross-section,
ovalorround,diameter≤8.4mm,Concentrichomogeneousormixed-signalsignalsignallevel
andwhite,clearboundary,smoothorlesssmooth,nosurroundingedemaandmass
effect.Lowsignalsandwhiteconcentricmixedsignalscharacteristicofcerebralhemorrh
6、age
microimagingfindings,andMixed-signallesiongroupwassignificantlygreaterthanthe
diameterofauniformsignalgroup(P<0.01).Mixed-signallesionswerelocatedintheupper
screen(AandB)area,underthescreen(C)zonedistributionisless(P<0.05).Conclusion:TheSusceptibilityweightedmagneticresonanceimagingofbrain
7、
microbleedshavehighsensitivityandspecificity,canbeusedasthedetection,analysisand
reliablescreeningmethodfordiagnosisofcerebralmicrobleeds.Keywords:Magneticresonance;Susceptibilityweightedimaging;Cerebralmicrobleeds;-2-万方数据佳木斯大学临床医学硕士专业
