ArteriesPulmonary ArteryConstriction, PathologicCarotid ArteriesCerebral ArteriesRenal ArteryFemoral ArteryMesenteric ArteriesCoronary VesselsBasilar ArteryCoronary Artery BypassCarotid Artery, InternalCoronary CirculationCoronary DiseaseIliac ArteryVertebral ArteryDogsRadial ArteryMammary ArteriesRenal Artery ObstructionCoronary AngiographySubclavian ArteryCarotid StenosisCoronary StenosisTricuspid Valve StenosisAngiographyArterial Occlusive DiseasesCarotid Artery DiseasesSplenic ArteryBrachial ArteryHemodynamicsAngioplasty, BalloonVascular PatencyHepatic ArteryCarotid Artery, CommonLaryngostenosisStentsCeliac ArteryKetanserinOphthalmic ArteryMesenteric Artery, SuperiorCoronary ThrombosisPlatelet AggregationMagnetic Resonance AngiographyUmbilical ArteriesMiddle Cerebral ArteryEndothelium, VascularThoracic ArteriesGraft Occlusion, VascularTemporal ArteriesBronchial ArteriesAngiography, Digital SubtractionTreatment OutcomePopliteal ArteryTomography, X-Ray ComputedBioprosthesisCatheterizationUlnar ArteryAortic Valve StenosisUterine ArteryThrombosisTime FactorsCarotid Artery, ExternalFollow-Up StudiesStress, MechanicalBlood PressureVasodilationBlood Flow VelocityCarotid Artery InjuriesMuscle, Smooth, VascularVasoconstrictionPostoperative ComplicationsModels, CardiovascularCollateral CirculationProspective StudiesSeverity of Illness IndexInfarction, Middle Cerebral ArteryAxillary ArteryRetinal Artery OcclusionCarotid Artery ThrombosisVasodilator AgentsMeningeal ArteriesAneurysmHeart Valve ProsthesisSensitivity and SpecificityRecurrenceRegional Blood FlowCerebral AngiographyBlood PlateletsMaxillary ArteryVasoconstrictor AgentsCarotid Artery, Internal, DissectionCoronary Artery Bypass, Off-PumpInternal Mammary-Coronary Artery AnastomosisMyocardial InfarctionVertebral Artery DissectionEmbolization, TherapeuticUltrasonography, DopplerMesenteric Artery, InferiorRisk Factors