Carotid Artery DiseasesCarotid ArteriesCarotid StenosisCarotid Artery, InternalCarotid Artery, CommonEndarterectomy, CarotidArteriesCoronary Artery DiseaseCarotid Artery, ExternalCarotid Artery ThrombosisCerebral ArteriesArterial Occlusive DiseasesEndarterectomyUltrasonography, Doppler, DuplexPulmonary ArteryIschemic Attack, TransientCoronary Artery BypassStentsCoronary DiseaseMagnetic Resonance AngiographyFemoral ArteryRisk FactorsCerebrovascular DisordersAngiographyCircle of WillisUltrasonography, Doppler, TranscranialRenal ArteryCarotid Artery, Internal, DissectionAngioplastyAmaurosis FugaxCerebrovascular CirculationUltrasonographyStrokeCerebral AngiographyBasilar ArteryMesenteric ArteriesOphthalmic ArteryVertebral ArteryProspective StudiesCoronary AngiographyArteriosclerosisAngioplasty, BalloonTreatment OutcomeCarotid BodyTomography, X-Ray ComputedRetinal Artery OcclusionAngiography, Digital SubtractionTunica IntimaIntracranial ArteriosclerosisCarotid SinusTime FactorsIliac ArteryFollow-Up StudiesBlood Flow VelocitySubclavian ArteryCoronary VesselsRadial ArteryIntracranial EmbolismConstriction, PathologicPredictive Value of TestsAcetazolamideBrain IschemiaMammary ArteriesBrachial ArteryCarotid Artery InjuriesSeverity of Illness IndexTunica MediaAsymptomatic DiseasesRetrospective StudiesIntracranial Embolism and ThrombosisCerebral InfarctionEmbolismRisk AssessmentBlood PressureCarotid Intima-Media ThicknessUltrasonography, Doppler, ColorSensitivity and SpecificityUltrasonography, DopplerPostoperative ComplicationsMiddle Cerebral ArterySplenic ArteryMuscle, Smooth, VascularCollateral CirculationEndothelium, VascularVasodilationHepatic ArteryTemporal ArteriesCeliac ArteryCoronary StenosisMyocardial InfarctionAneurysmAtherosclerosisCatheterizationRenal Artery ObstructionRegional Blood FlowMagnetic Resonance ImagingReproducibility of ResultsCalcinosisHemodynamicsPatient Selection