Balloon OcclusionCatheterizationAbdomenAbdomen, AcuteAngioplasty, BalloonEmbolization, TherapeuticCarotid Artery, InternalCollateral CirculationAngioplasty, Balloon, CoronaryCavernous SinusSuperior Sagittal SinusCarotid Artery DiseasesIntracranial AneurysmIntra-Aortic Balloon PumpingStentsTreatment OutcomeIntraoperative CareCerebral AngiographyGastric BalloonHemodynamicsOximesOrganotechnetium CompoundsCoronary CirculationTechnetium Tc 99m ExametazimeCoronary OcclusionIntracranial EmbolismMyocardial StunningTime FactorsMyocardial IschemiaSwineArteriovenous FistulaCoronary VesselsRetinal Vein OcclusionCoronary AngiographyArterial Occlusive DiseasesTomography, X-Ray ComputedCerebrovascular CirculationRetinal Artery OcclusionIntraoperative ComplicationsTomography, Emission-Computed, Single-PhotonVena Cava, InferiorCardiac CatheterizationFollow-Up StudiesDogsDisease Models, AnimalCoronary DiseaseElectrocardiographyMyocardial InfarctionMyocardial ReperfusionNeurologic ExaminationBlood Flow VelocityBalloon ValvuloplastyCarotid StenosisDental OcclusionRadiography, AbdominalContrast MediaVentricular Function, LeftProspective StudiesPreoperative CareBlood PressureAngioplasty, Balloon, Laser-AssistedConstriction, PathologicGraft Occlusion, VascularInfarction, Middle Cerebral ArteryBrain IschemiaAbdominal InjuriesIliac ArteryCarotid Artery InjuriesAngiographyMesenteric Vascular OcclusionPulmonary Valve StenosisAbdominal NeoplasmsFemoral ArteryConstrictionRecurrenceMitral Valve StenosisTunica IntimaDental Occlusion, CentricRetrospective StudiesCerebral ArteriesCerebral InfarctionTherapeutic OcclusionDilatationLaparotomyCarotid ArteriesThoraxVascular Patency