Vertebral ArteryVertebral Artery DissectionVertebrobasilar InsufficiencyAneurysm, DissectingDissectionArteriesBasilar ArterySubclavian ArteryCerebral AngiographySubclavian Steal SyndromeCarotid Artery, Internal, DissectionLateral Medullary SyndromeMagnetic Resonance AngiographyCarotid ArteriesAngiographyCarotid Artery, InternalIntracranial AneurysmCerebral ArteriesPulmonary ArteryTomography, X-Ray ComputedNeck DissectionAngiography, Digital SubtractionCervical VertebraeBrain Stem InfarctionsEmbolization, TherapeuticArterial Occlusive DiseasesNeck InjuriesCervical AtlasSubarachnoid HemorrhageAortic AneurysmFibromuscular DysplasiaRenal ArteryFemoral ArteryAxisStentsAneurysm, RupturedMesenteric ArteriesCarotid Artery, CommonCarotid Artery DiseasesOccipital BoneMammary ArteriesTreatment OutcomeCerebellar DiseasesAneurysm, FalseIliac ArteryCoronary Artery BypassConstriction, PathologicAtlanto-Axial JointNeckDoppler EffectVertigoRadial ArteryCerebral RevascularizationCarotid Artery, ExternalPercussionFollow-Up StudiesArteriovenous FistulaCerebral InfarctionAneurysmIntracranial ArteriosclerosisMagnetic Resonance ImagingUltrasonography, Doppler, ColorAngioplasty, BalloonAortic Aneurysm, ThoracicUltrasonography, DopplerMastoidAtlanto-Occipital JointCerebrovascular CirculationRetrospective StudiesAortographyBlood Vessel Prosthesis ImplantationSplenic ArteryMesenteric Artery, SuperiorUltrasonographyRegional Blood FlowWounds, StabCadaverBrachial ArteryAorta, ThoracicBlood Vessel ProsthesisCoronary VesselsBrain IschemiaTime FactorsLoop of HenleCeliac ArteryEndovascular ProceduresHepatic ArteryUltrasonography, Doppler, DuplexCerebrovascular DisordersCerebellumInfarctionHemifacial SpasmHeadacheCarotid StenosisUltrasonography, Doppler, TranscranialIntracranial Embolism and ThrombosisLymph Node ExcisionRupture, SpontaneousAngioplastyBalloon Occlusion