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1、最新3DAugmentedRealityforMRISurgeryUsingIntegral-藥學醫(yī)學精品資料OutlineIntroductionMaterialandMethodsSystemConfigurationIVImageDisplayandOverlayDeviceRegistrationofSpatial3DImageinPatientSoftwareAlignmentSurgicalProcedureExperimentandResultsConclusionIntroductionMagneticr
2、esonanceimaging(MRI)AmedicalimagingtechniqueProvidesdetailedinformationaboutsofttissue.IntroductionIntegralVideography(IV)SystemConfigurationIVImageandOverlayDeviceRegistrationof3DImageinPatientRegistrationof3DImageinPatientRegistrationof3DImageinPatientRegistrat
3、ionof3DImageinPatientSoftwareAlignmentSurgicalProcedureCalibratethepositionofreflectedIVimage;Placesterilefiducialmarkersonthesurfaceofthepatient’sbodyandscanthetargetarea;SegmentthetargetofinterestandmarkersfromtheMRIdata.Performpatient-to-imageregistrationtofin
4、dthe;SurgicalProcedureRendertheIVimagesandtransferthemtotheoverlaydevice;PerformthesurgicaltreatmentundertheguidanceofIVimageoverlay;Afterfinishingthetreatment,translatethepatientintothescanneragainandconfirmsurgicalresult.ExperimentandResultsAccuracymeasurementI
5、mplementedbyusingmarkersinaphantomsimulatingthehumanhead.AccuracymeasurementFivemarkersforregistrationandtwoforerrormeasurement.Marker:10mminexternaldiameterand3mmininternaldiameter.ThedistancebetweenthecenteroftheactualmarkerandthatofthespatialprojectedIVmarkerw
6、asmeasuredasanoverlayerror.Themeanvalueoftheerrorwas0.90mm,andthestandarddeviationwas0.21mmTargetingExperimentComparetheproceduretimeandsuccessrateoftargetinganobjectusing2-DimageguidanceandIVoverlaysystemguidance.Phantomconsistedofaplasticcubecontainer?lledwitha
7、nagar.TargetingExperimentSixMRImarkerswereattached.Threesetsofacryliccylinderswithdiametersof1.5,2and3mmwereembeddedwithinthephantom.2-DimageguidanceIVoverlaysystemguidanceResultsofguidance2-DimageguidanceIVoverlaysystemguidanceComparisonofproceduretimeFeasibilit
8、yEvaluationEvaluatethefeasibilitybyavolunteertest.ScanbrainusingMRI.Motionparallaxcouldbegeneratedduetothemotionofanobserver.ThemotionparallaxofIVautostereosco
