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HeartdiseaseistheNo.1killerintheUSAandmanyothercountries,asaresult,thetechnologiesusedtodiagnosisheartdiseaseexpandedrapidlyinthepast30years,fromthetraditionalx-rayandultrasoundimagingtechnologies,tothethreedimensionalrealtimecardiacmappingtechnology.
Themostwell-knowncardiacmappingtechnologiesareEnSitesystem,CARTOXPsystemandNOGAXPsystem.EnSitesystemdetectsthevariationinstrengthofelectricalfieldtodeterminethelocationandelectricalcardiacactivitiestoproducetheactivitiesmap,whileCARTOXPsystemdetectsthevariationinstrengthofmagneticfield.Thesetwosystemsarethemostcommonlyusedcardiacmappingtechnologies,CARTOsystemismorepopularbecausethestrengthofmagneticfileddetectedisnotaffectedbycardiacandrespiratorymotion.
NOGAXPsystemisdevelopedonthebasisofCARTOXPsystem,itproduceslocallinearshorting(LLS)maptoshowmyocardiummechanicalfunctionaswellasvoltagemaptoshowtheelectricalactivity.NOGAXPsystemcreateshighlyprecise,three-dimensionalmaps,enableboththediagnosisandtreatmentofheartdisease.Atlast,thedesignofNOGAsimulatorisconductedwithframeworkbeingconstructed.