ArteriesPulmonary ArteryCarotid ArteriesCerebral ArteriesFemoral ArteryRenal ArteryMesenteric ArteriesBasilar ArteryIliac ArteryCoronary Artery BypassVertebral ArteryRadial ArteryMammary ArteriesCarotid Artery, InternalSubclavian ArteryCarotid Artery DiseasesBrachial ArterySplenic ArteryCarotid Artery, CommonReproducibility of ResultsHepatic ArteryCoronary VesselsOphthalmic ArteryCeliac ArteryMesenteric Artery, SuperiorTime FactorsMiddle Cerebral ArteryUmbilical ArteriesRenal Artery ObstructionThoracic ArteriesTemporal ArteriesBronchial ArteriesPopliteal ArteryUlnar ArteryUterine ArteryCoronary AngiographyVasodilationCarotid Artery, ExternalTreatment OutcomeTomography, X-Ray ComputedSensitivity and SpecificityProspective StudiesArterial Occlusive DiseasesMuscle, Smooth, VascularVasoconstrictionAngiographyBlood PressureCoronary DiseaseCarotid Artery InjuriesRegional Blood FlowEndothelium, VascularInfarction, Middle Cerebral ArteryObserver VariationFollow-Up StudiesAxillary ArteryPredictive Value of TestsVasodilator AgentsStentsRetinal Artery OcclusionHemodynamicsRisk FactorsDogsReference ValuesCarotid Artery ThrombosisCarotid StenosisMagnetic Resonance AngiographyMeningeal ArteriesCoronary CirculationAneurysmRetrospective StudiesUltrasonography, DopplerCerebrovascular CirculationSwineCerebral AngiographyVasoconstrictor AgentsEquipment DesignMyocardial InfarctionConstriction, PathologicImage Processing, Computer-AssistedImaging, Three-DimensionalAngioplasty, BalloonMagnetic Resonance ImagingMaxillary ArteryRabbitsSeverity of Illness IndexCoronary StenosisPulsatile FlowAnalysis of VarianceVascular PatencyCarotid Artery, Internal, DissectionBiological MarkersCoronary Artery Bypass, Off-PumpDose-Response Relationship, DrugInternal Mammary-Coronary Artery AnastomosisRats, Sprague-DawleyUltrasonography, Doppler, ColorEmbolization, TherapeuticNitric OxidePregnancyDisease Models, Animal