Flank PainEmbolismMesenteric ArteriesMesenteric Vascular OcclusionMesenteric Artery, SuperiorPulmonary EmbolismArteriesMesenteric Artery, InferiorPulmonary ArteryEmbolism, FatRenal ArteryCarotid ArteriesCerebral ArteriesFemoral ArteryCeliac ArteryBasilar ArterySuperior Mesenteric Artery SyndromeIliac ArteryEmbolism, ParadoxicalIntracranial EmbolismVertebral ArteryCoronary Artery BypassVasodilationMuscle, Smooth, VascularVasoconstrictionSplenic ArteryRadial ArteryMammary ArteriesCarotid Artery, InternalIntracranial Embolism and ThrombosisSubclavian ArteryHepatic ArteryCarotid Artery DiseasesAngiographySplanchnic CirculationVasodilator AgentsBrachial ArteryVasoconstrictor AgentsTomography, X-Ray ComputedCoronary VesselsEndothelium, VascularBiological FactorsEmbolism, Amniotic FluidCarotid Artery, CommonMesenteric VeinsTreatment OutcomeOphthalmic ArteryNorepinephrineRenal Artery ObstructionMiddle Cerebral ArteryUmbilical ArteriesTime FactorsThoracic ArteriesAcetylcholineRats, WistarArterial Occlusive DiseasesPhenylephrineMyographyBlood PressureTemporal ArteriesAneurysmPopliteal ArteryBronchial ArteriesEmbolism, CholesterolUlnar ArteryRats, Sprague-DawleyNitric OxideDose-Response Relationship, DrugStentsCoronary AngiographyUterine ArteryMuscle RelaxationMuscle ContractionRegional Blood FlowRats, Inbred WKYCarotid Artery, ExternalDogsConstriction, PathologicEmbolectomyDuodenostomyUltrasonography, DopplerCarotid Artery InjuriesRetrospective StudiesProspective StudiesFollow-Up StudiesCoronary DiseaseVenous ThrombosisAxillary ArteryVena Cava, SuperiorMagnetic Resonance AngiographyRetinal Artery OcclusionRabbitsRisk Factors15-Hydroxy-11 alpha,9 alpha-(epoxymethano)prosta-5,13-dienoic AcidAnticoagulantsInfarction, Middle Cerebral ArteryHemodynamicsAorta, ThoracicPotassium ChlorideCarotid Artery Thrombosis