AngiographySyndromeCoronary AngiographyMagnetic Resonance AngiographyCerebral AngiographyAngiography, Digital SubtractionFluorescein AngiographyTomography, X-Ray ComputedDown SyndromeMetabolic Syndrome XContrast MediaRadionuclide AngiographyIntracranial AneurysmSensitivity and SpecificityCoronary Artery DiseaseNephrotic SyndromeImaging, Three-DimensionalCoronary StenosisTomography, Spiral ComputedSjogren's SyndromePredictive Value of TestsTreatment OutcomeEmbolization, TherapeuticProspective StudiesAcute Coronary SyndromeIntracranial Arteriovenous MalformationsRetrospective StudiesIopamidolCarotid Artery, InternalFollow-Up StudiesTurner SyndromeMultidetector Computed TomographyAbnormalities, MultipleCoronary DiseaseCoronary VesselsVertebral ArteryStentsReproducibility of ResultsArterial Occlusive DiseasesMyelodysplastic SyndromesIohexolSubarachnoid HemorrhageAneurysm, RupturedRadiographic Image Interpretation, Computer-AssistedImage Processing, Computer-AssistedRisk FactorsConstriction, PathologicSeverity of Illness IndexCushing SyndromeTime FactorsMagnetic Resonance ImagingElectrocardiographyHorner SyndromeIndocyanine GreenPolycystic Ovary SyndromeVertebrobasilar InsufficiencyObserver VariationCentral Nervous System Vascular MalformationsMyocardial InfarctionCarotid StenosisWilliams SyndromeArteriovenous FistulaUltrasonography, InterventionalRadiographic Image EnhancementAngioplasty, Balloon, CoronaryDiGeorge SyndromeCerebral ArteriesPrader-Willi SyndromeCerebral VeinsFundus OculiLong QT SyndromeFeasibility StudiesAngina PectorisArteriovenous MalformationsChest PainGuillain-Barre SyndromeCarotid Artery DiseasesCircle of WillisHemolytic-Uremic SyndromeAntiphospholipid SyndromeCollateral CirculationCompartment SyndromesTriiodobenzoic AcidsAortographyTourette SyndromeCardiac CatheterizationRecurrenceRadiation DosageUltrasonography, Doppler, DuplexAcute DiseaseImage EnhancementPorcine Reproductive and Respiratory SyndromeGadolinium DTPATomography, Emission-Computed, Single-PhotonCarotid ArteriesBlood Flow VelocityVascular PatencyKlinefelter SyndromeRadiography, InterventionalCarpal Tunnel Syndrome