Balloon OcclusionCatheterizationAngioplasty, BalloonEmbolization, TherapeuticCarotid Artery, InternalCollateral CirculationAngioplasty, Balloon, CoronaryCavernous SinusSuperior Sagittal SinusTreatment OutcomeSuperficial Back MusclesCarotid Artery DiseasesIntracranial AneurysmObserver VariationIntraoperative ComplicationsIntra-Aortic Balloon PumpingStentsTime FactorsIntraoperative CareCerebral AngiographyGastric BalloonReproducibility of ResultsOximesHemodynamicsCoronary CirculationOrganotechnetium CompoundsTechnetium Tc 99m ExametazimeCoronary OcclusionIntracranial EmbolismMyocardial StunningTomography, X-Ray ComputedMyocardial IschemiaFollow-Up StudiesSwineCoronary VesselsRetinal Vein OcclusionArteriovenous FistulaCoronary AngiographyArterial Occlusive DiseasesCerebrovascular CirculationRetinal Artery OcclusionCardiac CatheterizationTomography, Emission-Computed, Single-PhotonVena Cava, InferiorProspective StudiesDogsDisease Models, AnimalCoronary DiseaseElectrocardiographyMyocardial InfarctionMyocardial ReperfusionNeurologic ExaminationBlood Flow VelocityBalloon ValvuloplastyCarotid StenosisDental OcclusionVentricular Function, LeftBlood PressureContrast MediaRetrospective StudiesPreoperative CareAngioplasty, Balloon, Laser-AssistedLenses, IntraocularConstriction, PathologicGraft Occlusion, VascularInfarction, Middle Cerebral ArteryBrain IschemiaCarotid Artery InjuriesIliac ArterySensitivity and SpecificityPulmonary Valve StenosisAngiographyFemoral ArteryConstrictionMitral Valve StenosisTunica IntimaMagnetic Resonance ImagingMesenteric Vascular OcclusionRecurrenceDental Occlusion, CentricCerebral ArteriesCerebral InfarctionTherapeutic OcclusionDilatationBrazilCarotid ArteriesVascular Patency