Carotid StenosisCarotid ArteriesCarotid Artery DiseasesCarotid Artery, InternalEndarterectomy, CarotidCarotid Artery, CommonCarotid Artery, ExternalCarotid Artery ThrombosisCarotid BodyUltrasonography, Doppler, DuplexArteriesCarotid SinusStentsIschemic Attack, TransientEndarterectomyAngioplastyStrokeCerebral AngiographyCerebrovascular DisordersAortic Valve StenosisTunica IntimaCarotid Artery, Internal, DissectionConstriction, PathologicMagnetic Resonance AngiographyAngioplasty, BalloonAngiography, Digital SubtractionAngiographyTunica MediaArterial Occlusive DiseasesUltrasonography, Doppler, TranscranialCoronary StenosisRisk FactorsCarotid Artery InjuriesCarotid Intima-Media ThicknessAmaurosis FugaxTreatment OutcomeUltrasonographyIntracranial EmbolismCerebral ArteriesCerebrovascular CirculationProspective StudiesArteriosclerosisBlood Flow VelocityBrain IschemiaSpinal StenosisUltrasonography, Doppler, ColorFollow-Up StudiesTomography, X-Ray ComputedIntracranial ArteriosclerosisSeverity of Illness IndexTracheal StenosisTime FactorsFemoral ArteryUltrasonography, DopplerPredictive Value of TestsPulmonary ArteryVertebral ArteryRetrospective StudiesMiddle Cerebral ArteryPostoperative ComplicationsCerebral InfarctionRenal ArteryAuscultationCoronary Artery BypassRecurrenceAsymptomatic DiseasesCatheterizationRisk AssessmentRetinal Artery OcclusionSensitivity and SpecificityBlood PressureBasilar ArteryPyloric StenosisAtherosclerosisMitral Valve StenosisPulmonary Valve StenosisIntracranial Embolism and ThrombosisEmbolismHemodynamicsSubclavian ArteryOphthalmic ArteryCarotid Body TumorCalcinosisPlaque, AtheroscleroticRenal Artery ObstructionMesenteric ArteriesDoppler EffectIliac ArteryCranial Nerve InjuriesObserver VariationRegional Blood FlowReproducibility of ResultsMagnetic Resonance ImagingRadial ArteryCoronary AngiographyCollateral CirculationMuscle, Smooth, VascularAneurysmCoronary VesselsBrachial Artery