Carotid Artery DiseasesCarotid ArteriesCarotid StenosisCarotid Artery, InternalEndarterectomy, CarotidCarotid Artery, CommonCoronary Artery DiseaseCarotid Artery, ExternalCarotid Artery ThrombosisArteriesEndarterectomyUltrasonography, Doppler, DuplexArterial Occlusive DiseasesIschemic Attack, TransientRisk FactorsStentsCerebrovascular DisordersMagnetic Resonance AngiographyCoronary DiseaseAmaurosis FugaxCerebral ArteriesStrokeUltrasonography, Doppler, TranscranialCircle of WillisUltrasonographyProspective StudiesAngioplastyCerebrovascular CirculationTreatment OutcomeCarotid Artery, Internal, DissectionAngiographyCarotid BodyCoronary Artery BypassCerebral AngiographyArteriosclerosisTunica IntimaAngioplasty, BalloonTime FactorsTomography, X-Ray ComputedBlood Flow VelocityAngiography, Digital SubtractionCarotid SinusFollow-Up StudiesCoronary AngiographyIntracranial ArteriosclerosisSeverity of Illness IndexRetinal Artery OcclusionPredictive Value of TestsAcetazolamideIntracranial EmbolismOphthalmic ArteryRetrospective StudiesTunica MediaBrain IschemiaConstriction, PathologicAsymptomatic DiseasesFemoral ArteryPulmonary ArteryIntracranial Embolism and ThrombosisRisk AssessmentEmbolismSensitivity and SpecificityCarotid Intima-Media ThicknessCerebral InfarctionVertebral ArteryPostoperative ComplicationsBlood PressureCarotid Artery InjuriesUltrasonography, Doppler, ColorRenal ArteryBasilar ArteryCoronary VesselsCollateral CirculationUltrasonography, DopplerMesenteric ArteriesSubclavian ArteryMagnetic Resonance ImagingReproducibility of ResultsBrachial ArteryPatient SelectionRadial ArteryIliac ArteryMyocardial InfarctionAngina PectorisPrevalenceAtherosclerosisEndothelium, VascularMammary ArteriesCatheterizationMuscle, Smooth, VascularBrainCoronary StenosisCalcinosisHemodynamicsExercise TestLogistic ModelsCase-Control StudiesBiological MarkersMiddle Cerebral ArteryTomography, Emission-Computed, Single-Photon