Carotid Artery DiseasesCarotid ArteriesCarotid StenosisCarotid Artery, InternalEndarterectomy, CarotidCarotid Artery, CommonCoronary Artery DiseaseCarotid Artery, ExternalCarotid Artery ThrombosisArteriesEndarterectomyUltrasonography, Doppler, DuplexArterial Occlusive DiseasesIschemic Attack, TransientStentsMagnetic Resonance AngiographyRisk FactorsCoronary DiseaseCerebrovascular DisordersAmaurosis FugaxCerebral ArteriesUltrasonographyCircle of WillisUltrasonography, Doppler, TranscranialStrokeAngioplastyCerebrovascular CirculationCarotid Artery, Internal, DissectionAngiographyArteriosclerosisCerebral AngiographyCarotid BodyCoronary Artery BypassProspective StudiesTunica IntimaAngioplasty, BalloonTreatment OutcomeTomography, X-Ray ComputedAngiography, Digital SubtractionCoronary AngiographyCarotid SinusBlood Flow VelocityIntracranial ArteriosclerosisRetinal Artery OcclusionAcetazolamideTime FactorsOphthalmic ArteryIntracranial EmbolismFollow-Up StudiesPredictive Value of TestsTunica MediaBrain IschemiaConstriction, PathologicFemoral ArteryAsymptomatic DiseasesSeverity of Illness IndexPulmonary ArteryRetrospective StudiesIntracranial Embolism and ThrombosisEmbolismCerebral InfarctionCarotid Intima-Media ThicknessRisk AssessmentSensitivity and SpecificityVertebral ArteryUltrasonography, Doppler, ColorCarotid Artery InjuriesRenal ArteryCoronary VesselsBasilar ArteryBlood PressurePostoperative ComplicationsUltrasonography, DopplerCollateral CirculationMesenteric ArteriesMagnetic Resonance ImagingSubclavian ArteryBrachial ArteryAtherosclerosisIliac ArteryRadial ArteryReproducibility of ResultsPatient SelectionCoronary StenosisMuscle, Smooth, VascularMammary ArteriesCatheterizationMyocardial InfarctionEndothelium, VascularCalcinosisAngina PectorisPrevalenceExercise TestBrainMiddle Cerebral ArteryAneurysmVasodilationLogistic ModelsRegional Blood FlowHemodynamics