Balloon OcclusionCatheterizationAngioplasty, BalloonEmbolization, TherapeuticCarotid Artery, InternalCollateral CirculationAngioplasty, Balloon, CoronaryCavernous SinusSuperior Sagittal SinusCarotid Artery DiseasesIntracranial AneurysmIntra-Aortic Balloon PumpingTreatment OutcomeStentsIntraoperative CareCerebral AngiographyGastric BalloonHemodynamicsOximesCoronary CirculationCoronary OcclusionOrganotechnetium CompoundsTechnetium Tc 99m ExametazimeIntracranial EmbolismTime FactorsMyocardial StunningSwineMyocardial IschemiaCardiac CatheterizationCoronary VesselsCoronary AngiographyArterial Occlusive DiseasesRetinal Vein OcclusionArteriovenous FistulaCerebrovascular CirculationIntraoperative ComplicationsRetinal Artery OcclusionDevice ApprovalFollow-Up StudiesTomography, Emission-Computed, Single-PhotonVena Cava, InferiorDogsDisease Models, AnimalElectrocardiographyCoronary DiseaseMyocardial InfarctionMyocardial ReperfusionBlood Flow VelocityNeurologic ExaminationBalloon ValvuloplastyEquipment DesignTomography, X-Ray ComputedCarotid StenosisVentricular Function, LeftDental OcclusionProspective StudiesBlood PressureContrast MediaEquipment SafetyPreoperative CareAngioplasty, Balloon, Laser-AssistedConstriction, PathologicDevice RemovalGraft Occlusion, VascularInfarction, Middle Cerebral ArteryIntrauterine DevicesBrain IschemiaIliac ArteryCarotid Artery InjuriesFemoral ArteryEquipment and SuppliesAngiographySeptal Occluder DevicePulmonary Valve StenosisConstrictionMitral Valve StenosisTunica IntimaTherapeutic OcclusionRecurrenceMesenteric Vascular OcclusionProstheses and ImplantsEquipment FailureDental Occlusion, CentricCerebral ArteriesCerebral InfarctionCathetersRetrospective StudiesDilatationVascular PatencyCarotid ArteriesProsthesis Design