Echocardiography, TransesophagealEchocardiographyEchocardiography, Three-DimensionalMagnetic Resonance ImagingEchocardiography, DopplerEchocardiography, Doppler, ColorHeart Septal Defects, AtrialMitral ValveAtrial AppendageHeart AtriaEchocardiography, StressMitral Valve InsufficiencyHeart DiseasesEmbolismAortic DiseasesHeart Valve ProsthesisHeart Valve DiseasesHeart NeoplasmsIntraoperative CareEsophagusAortic ValveEchocardiography, Doppler, PulsedThrombosisMagnetic Resonance SpectroscopyCardiac CatheterizationMonitoring, IntraoperativeDobutamineCardiac Surgical ProceduresMitral Valve ProlapseAtrial Function, LeftVentricular Function, LeftSensitivity and SpecificityObserver VariationForamen Ovale, PatentPredictive Value of TestsAortic Valve InsufficiencyChordae TendineaeHeart VentriclesHeart Valve Prosthesis ImplantationAorta, ThoracicProspective StudiesEndocarditisIntraoperative PeriodStroke VolumeVentricular Dysfunction, LeftContrast MediaHeart AneurysmAtrial FibrillationSeptal Occluder DeviceFeasibility StudiesMyxomaHeart SeptumEmbolism, ParadoxicalPulmonary VeinsMitral Valve StenosisEndocarditis, BacterialElectric CountershockHeart Defects, CongenitalIntracranial EmbolismReproducibility of ResultsBlood Flow VelocityThoraxHemodynamicsElectrocardiographyHeart Septal Defects, VentricularAortic AneurysmTricuspid ValveAortic Valve StenosisThromboembolismHeart RuptureBenzocaineTricuspid Valve InsufficiencyTreatment OutcomeDiastoleMagnetic Resonance Imaging, CineFollow-Up StudiesMyocardial ContractionTomography, X-Ray ComputedAneurysm, DissectingEmbolism, AirUltrasonography, InterventionalSystoleAtrial SeptumCoronary CirculationEvaluation Studies as TopicMagnetic Resonance AngiographyCoronary AngiographyTime FactorsIntracranial Embolism and ThrombosisHeartPulmonary EmbolismCor TriatriatumVentricular Function, RightCrisscross HeartThermodilutionHematomaImage Processing, Computer-AssistedCardiac TamponadeExercise TestHeart Valves