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104Chapter6ABSTRACTTheimplementationofaugmentedreality(AR)inimage-guidedsurgery(IGS)canimprovesurgicalinterventionsbypresentingtheimagedatadirectlyonthepatientatthecorrectpositionandintheactualorientationThisapproachcanresolvetheswitchingfocusproblemwhichoccursinconventionalIGSsystemswhenthesurgeonhastolookawayfromtheoperationfieldtoconsulttheimagedataona2-dimensionalscreenTheMicrosoftHoloLensahead-mountedARdisplaywascombinedwithan opticalnavigation system to create an AR-basedIGS systemExperimentswereperformedonaphantommodeltodeterminetheaccuracyofthecompletesystemandtoevaluatetheeffectofaddingARTheresultsdemonstratedameanEuclideandistanceof23mmwithamaximumerrorof35mm for thecompletesystem Adding AR visualizationtoaconventionalsystemincreasedthemeanerrorby16mmThe introduction of AR inIGS waspromising Thepresented systemprovidedasolutionfortheswitchingfocusproblemandcreatedamoreintuitiveguidancesystemWithafurtherreductionintheerrorandmoreresearchtooptimizethevisualizationmanysurgicalapplicationscouldbenefitfromtheadvantagesofARguidance
