Multidetector Computed TomographyTomography, X-Ray ComputedTomography, Spiral ComputedRadiographic Image Interpretation, Computer-AssistedTomography Scanners, X-Ray ComputedRadiographic Image EnhancementRadiation DosageImaging, Three-DimensionalIohexolCoronary AngiographyContrast MediaCoronary StenosisSensitivity and SpecificityTriiodobenzoic AcidsReproducibility of ResultsKidney Tubules, DistalIncidental FindingsIopamidolObserver VariationPredictive Value of TestsCoronary Artery DiseaseCardiac-Gated Imaging TechniquesPhantoms, ImagingCalcinosisAngiographyVascular MalformationsBronchographyArtifactsImage Processing, Computer-AssistedRadiography, ThoracicPlaque, AtheroscleroticRetrospective StudiesThoracic CavityPerfusion ImagingPulmonary VeinsBronchial ArteriesAortic ValveRadiography, AbdominalCone-Beam Computed TomographyAirway ManagementRadiometryPreoperative CareBody BurdenCoronary VesselsCoronary SinusFeasibility StudiesImage EnhancementCoronary Vessel AnomaliesAortic Valve InsufficiencyElectrocardiographyMagnetic Resonance ImagingMucopolysaccharidosesAortic Valve StenosisTracheoesophageal FistulaCeliac ArteryChest PainPhlebographyProspective StudiesHeart Valve Prosthesis ImplantationSeverity of Illness IndexChi-Square DistributionPericardiumVascular CalcificationAbdominal NeoplasmsHeart Valve ProsthesisDiagnostic ImagingPatient PositioningLiver NeoplasmsGadolinium DTPASwine, MiniatureCadaverMyocardial Perfusion ImagingPulmonary EmbolismROC CurveDilatation, PathologicEquipment DesignHeart AtriaAortographyCholangiopancreatography, Magnetic ResonanceWhole Body ImagingAtrial Function, LeftRadiography, InterventionalUltrasonography, InterventionalAutomationCarcinoma, HepatocellularMonte Carlo MethodAlgorithmsLinear ModelsCardiologyCardiac CatheterizationEchocardiographyCatheter AblationStroke VolumePneumothoraxRisk AssessmentArteriovenous FistulaEchocardiography, TransesophagealHepatic ArteryRupture, SpontaneousReference Standards