ArteriesPulmonary ArteryCarotid ArteriesCerebral ArteriesRenal ArteryFemoral ArteryMesenteric ArteriesBasilar ArteryVertebral ArteryIliac ArteryCoronary Artery BypassCranial Fossa, PosteriorRadial ArteryMammary ArteriesCarotid Artery, InternalSubclavian ArteryCarotid Artery DiseasesBrachial ArterySplenic ArteryHepatic ArteryCarotid Artery, CommonCoronary VesselsOphthalmic ArteryCeliac ArteryMesenteric Artery, SuperiorMiddle Cerebral ArteryPosterior Cerebral ArteryUmbilical ArteriesThoracic ArteriesRenal Artery ObstructionTemporal ArteriesPopliteal ArteryTomography, X-Ray ComputedPosterior Cruciate LigamentBronchial ArteriesTreatment OutcomeMagnetic Resonance ImagingUlnar ArteryUterine ArteryCoronary AngiographyCarotid Artery, ExternalVasodilationAngiographyArterial Occlusive DiseasesTime FactorsUveitis, PosteriorMuscle, Smooth, VascularCarotid Artery InjuriesVasoconstrictionHypothalamus, PosteriorCerebral AngiographyCoronary DiseaseFollow-Up StudiesAxillary ArteryRetrospective StudiesInfarction, Middle Cerebral ArteryOssification of Posterior Longitudinal LigamentEndothelium, VascularRetinal Artery OcclusionStentsMagnetic Resonance AngiographyAneurysmPostoperative ComplicationsMeningeal ArteriesVasodilator AgentsCarotid Artery ThrombosisRegional Blood FlowProspective StudiesCarotid StenosisInfarction, Posterior Cerebral ArterySpinal FusionIntracranial AneurysmBlood PressureMaxillary ArteryEmbolization, TherapeuticPituitary Gland, PosteriorLens Capsule, CrystallineCerebrovascular CirculationDogsHemodynamicsPosterior Leukoencephalopathy SyndromeConstriction, PathologicVertebral Artery DissectionImage Processing, Computer-AssistedCoronary CirculationCadaverVasoconstrictor AgentsAngioplasty, BalloonCarotid Artery, Internal, DissectionRisk FactorsCircle of WillisVascular PatencyAngiography, Digital SubtractionMyocardial InfarctionBrainInfratentorial NeoplasmsUltrasonography, DopplerCoronary StenosisCoronary Artery Bypass, Off-PumpParietal Lobe