ArteriesPulmonary ArteryCarotid ArteriesCerebral ArteriesRenal ArteryFemoral ArteryMesenteric ArteriesBasilar ArteryIliac ArteryCoronary Artery BypassVertebral ArteryRadial ArteryMammary ArteriesCarotid Artery, InternalSubclavian ArteryCarotid Artery DiseasesBrachial ArterySplenic ArteryHepatic ArteryCarotid Artery, CommonCoronary VesselsCeliac ArteryOphthalmic ArteryMesenteric Artery, SuperiorUmbilical ArteriesMiddle Cerebral ArteryRenal Artery ObstructionThoracic ArteriesTemporal ArteriesBronchial ArteriesPopliteal ArteryUlnar ArteryUterine ArteryCoronary AngiographyCarotid Artery, ExternalVasodilationCarotid Artery InjuriesMuscle, Smooth, VascularArterial Occlusive DiseasesTreatment OutcomeVasoconstrictionAngiographyCoronary DiseaseTime FactorsEndothelium, VascularInfarction, Middle Cerebral ArteryAxillary ArteryTomography, X-Ray ComputedRetinal Artery OcclusionStentsCarotid Artery ThrombosisVasodilator AgentsMeningeal ArteriesAneurysmCarotid StenosisRegional Blood FlowBlood PressureRisk FactorsFollow-Up StudiesCerebral AngiographyMagnetic Resonance AngiographyProspective StudiesMaxillary ArteryVasoconstrictor AgentsCoronary CirculationAngioplasty, BalloonRetrospective StudiesCarotid Artery, Internal, DissectionHemodynamicsDogsMyocardial InfarctionConstriction, PathologicCoronary Artery Bypass, Off-PumpInternal Mammary-Coronary Artery AnastomosisCoronary StenosisVascular PatencyVertebral Artery DissectionEmbolization, TherapeuticUltrasonography, DopplerMesenteric Artery, InferiorCerebrovascular CirculationAngiography, Digital SubtractionSwineArteriosclerosisPredictive Value of TestsLigationIntracranial AneurysmAneurysm, FalseCalcinosisPostoperative ComplicationsAcetylcholineNitric OxideUltrasonography, Doppler, ColorDose-Response Relationship, DrugCatheterizationPulsatile FlowAngioplasty, Balloon, CoronaryTransposition of Great VesselsNitroglycerinRabbits