Vertebral ArteryVertebral Artery DissectionVertebrobasilar InsufficiencyArteriesBasilar ArteryAneurysm, DissectingDissectionSubclavian ArteryPulmonary ArteryCarotid ArteriesCerebral AngiographyCerebral ArteriesCell WallCarotid Artery, Internal, DissectionSubclavian Steal SyndromeRenal ArteryFemoral ArteryCarotid Artery, InternalMesenteric ArteriesMagnetic Resonance AngiographyLateral Medullary SyndromeAngiographyMammary ArteriesIntracranial AneurysmIliac ArteryTomography, X-Ray ComputedCarotid Artery, CommonCoronary Artery BypassCarotid Artery DiseasesArterial Occlusive DiseasesRadial ArteryEmbolization, TherapeuticAngiography, Digital SubtractionStentsNeck DissectionBrain Stem InfarctionsCervical VertebraeSubarachnoid HemorrhageFibromuscular DysplasiaNeck InjuriesTreatment OutcomeAneurysm, RupturedAortic AneurysmCervical AtlasSplenic ArteryBrachial ArteryCoronary VesselsHepatic ArteryCarotid Artery, ExternalMesenteric Artery, SuperiorAxisCeliac ArteryAneurysm, FalseConstriction, PathologicAneurysmOccipital BoneOphthalmic ArteryFollow-Up StudiesCerebellar DiseasesAngioplasty, BalloonMiddle Cerebral ArteryRenal Artery ObstructionUmbilical ArteriesThoracic ArteriesUltrasonography, Doppler, ColorTemporal ArteriesUltrasonography, DopplerCerebral InfarctionRegional Blood FlowTime FactorsCerebrovascular CirculationCarotid Artery InjuriesCerebral RevascularizationRetrospective StudiesIntracranial ArteriosclerosisArteriovenous FistulaPopliteal ArteryMagnetic Resonance ImagingBronchial ArteriesCarotid StenosisCoronary AngiographyUlnar ArteryNeckAtlanto-Axial JointBlood Vessel Prosthesis ImplantationDoppler EffectVertigoAorta, ThoracicUterine ArteryPercussionAortic Aneurysm, ThoracicAortographyBrain IschemiaUltrasonography, Doppler, DuplexBlood Vessel ProsthesisUltrasonographyVasodilationMuscle, Smooth, VascularMastoidAngioplasty