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Generaldiscussionandfutureperspectives21912bodyduringopensurgery)electromagnetictracking(EM)haveprovedtobethebesttrackingoption45Anidealtrackingsystemshouldbehighlyaccurateavoidradiationexposurebecost-andtime-effectiveandbesimpleinuseandmaintenance46Regrettably the trackingmethods that are actually at thesurgeon’sdisposaldependonhospitalpolicyindustrytendersandservicecontractsInadditionthehighcosts(upto100000eurosforasingletrackingmodule)limitsgeneralimplementationandcouldalsobe thereason whyIGSisnotstandardcareformanyclinicalapplicationsSinceeverytechniquehasthesamegoal(providingrealtimetransformationupdates)abasicsoftwaremoduletowhichvarioustrackingsystemscouldbeconnectedwouldbearevelation ThiswillallowuserstochoosethebestfittingtrackingmethodforeveryclinicalapplicationAuniversalmodulewouldalsostimulatetheuseofnewtrackingmethodsThiswillbemoreobviouswhenwecomparethe‘SurgicalTracking’marketwiththe‘Gaming Tracking’marketAninterestingexampleistheHTCLighthousetrackingsystem developed to track theheadset and controllers of a gamer in VR This systemneedstwoormoresmall‘lighthouses’whichsend-outsweepsoflightVarioustinysensorsonthecontrollersdetecttheselightsweepsandthedelaybetweensendingandreceivingisusedtocalculatethedistancetothelighthousesandtheirorientation Thissystemoutperformsconventionalsurgicaltrackingsystemswithasubmillimeterprecisiona60Hzrefreshrateandafieldofviewof45x45m47Furthermorethissystemhasbeencriticallytestedbyalargenumberofgamerswhouseittothrowknifesatzombies(insteadofusingknifestodissectpatients)Andaboveallthecostofthissystemisapproximately470euros
