Carotid StenosisEndarterectomy, CarotidCarotid ArteriesCarotid Artery, InternalCarotid Artery DiseasesEndarterectomyCarotid Artery, CommonCarotid Artery, ExternalCarotid Artery ThrombosisUltrasonography, Doppler, DuplexStentsArteriesAngiography, Digital SubtractionAngioplastyRenal Artery ObstructionMagnetic Resonance AngiographyAngioplasty, BalloonAngiographyIschemic Attack, TransientCerebrovascular DisordersCerebral AngiographyStrokeArterial Occlusive DiseasesConstriction, PathologicUltrasonography, Doppler, ColorUltrasonography, Doppler, TranscranialCoronary StenosisCarotid Artery, Internal, DissectionTreatment OutcomeBlood Flow VelocityIntracranial EmbolismCerebral ArteriesRenal ArteryCarotid BodyRisk FactorsTunica IntimaProspective StudiesArteriosclerosisCarotid SinusCerebrovascular CirculationTomography, X-Ray ComputedBrain IschemiaFemoral ArteryPostoperative ComplicationsPulmonary ArteryFollow-Up StudiesAmaurosis FugaxUltrasonography, DopplerSeverity of Illness IndexTime FactorsVertebral ArteryTunica MediaRetrospective StudiesSensitivity and SpecificityPredictive Value of TestsUltrasonographyIntracranial ArteriosclerosisAortic Valve StenosisOphthalmic ArteryCoronary Artery BypassIntracranial Embolism and ThrombosisBasilar ArteryIliac ArteryCerebral InfarctionRecurrenceCarotid Intima-Media ThicknessMiddle Cerebral ArteryCarotid Artery InjuriesRisk AssessmentAsymptomatic DiseasesSubclavian ArteryBlood PressureCatheterizationHypertension, RenovascularCoronary AngiographyMesenteric ArteriesAtherosclerosisHemodynamicsObserver VariationEmbolismCalcinosisEmbolic Protection DevicesRetinal Artery OcclusionCranial Nerve InjuriesCerebral RevascularizationPlaque, AtheroscleroticVascular PatencyCoronary VesselsDoppler EffectCollateral CirculationReproducibility of ResultsVertebrobasilar InsufficiencyPatient SelectionBlood Vessel Prosthesis ImplantationSpinal StenosisBlood Vessel ProsthesisRadial ArteryCoronary DiseaseAneurysmPulmonary Valve Stenosis