Balloon OcclusionCatheterizationAngioplasty, BalloonEmbolization, TherapeuticCarotid Artery, InternalCollateral CirculationAngioplasty, Balloon, CoronaryIntracranial AneurysmCavernous SinusSuperior Sagittal SinusCarotid Artery DiseasesCerebral AngiographyStentsIntra-Aortic Balloon PumpingTreatment OutcomeIntraoperative CareGastric BalloonHemodynamicsOximesCoronary CirculationOrganotechnetium CompoundsTechnetium Tc 99m ExametazimeCoronary OcclusionIntracranial EmbolismMyocardial StunningArteriovenous FistulaMyocardial IschemiaTime FactorsSwineCoronary VesselsArterial Occlusive DiseasesCoronary AngiographyRetinal Vein OcclusionCerebrovascular CirculationCardiac CatheterizationRetinal Artery OcclusionIntraoperative ComplicationsFollow-Up StudiesTomography, Emission-Computed, Single-PhotonVena Cava, InferiorDogsDisease Models, AnimalCoronary DiseaseElectrocardiographyMyocardial InfarctionNeurologic ExaminationMyocardial ReperfusionBlood Flow VelocityTomography, X-Ray ComputedBalloon ValvuloplastyCarotid StenosisDental OcclusionContrast MediaVentricular Function, LeftBlood PressurePreoperative CareProspective StudiesAngioplasty, Balloon, Laser-AssistedConstriction, PathologicGraft Occlusion, VascularInfarction, Middle Cerebral ArteryAngiographyBrain IschemiaCarotid Artery InjuriesIliac ArteryEquipment DesignPlatinumAneurysm, RupturedFemoral ArteryPulmonary Valve StenosisRecurrenceTunica IntimaConstrictionCerebral ArteriesMitral Valve StenosisMesenteric Vascular OcclusionCerebral InfarctionDental Occlusion, CentricCarotid ArteriesAngiography, Digital SubtractionDuctus Arteriosus, PatentTherapeutic OcclusionVascular PatencyDilatationRetrospective StudiesEquipment Failure AnalysisCatheters