简介：Toattainthevolumetricinformationoftheopticradiationinnormalhumanbrains,weperformeddiffusiontensorimagingexaminationin13healthyvolunteers.Simultaneously,weusedabrainnormalizationmethodtoreduceindividualbrainvariationandincreasetheaccuracyofvolumetricinformationanalysis.Inaddition,tractography-basedgroupmappingmethodwasalsousedtoinvestigatetheprobabilityanddistributionoftheopticradiationpathways.Ourresultsshowedthatthemeasuredopticradiationfibertractvolumewasarangeofabout0.16%andthatthefractionalanisotropyvaluewasabout0.53.Moreover,theopticradiationprobabilityfiberpathwaythatwasdeterminedwithdiffusiontensortractography-basedgroupmappingwasabletodetectthelocationrelativelyaccurately.Webelievethatourmethodsandresultsarehelpfulinthestudyofopticradiationfibertractinformation.
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