Carotid ArteriesCarotid Artery DiseasesUltrasonographyCarotid StenosisCarotid Artery, CommonTunica MediaCarotid Artery, InternalTunica IntimaCarotid Intima-Media ThicknessBlood Flow VelocityEndarterectomy, CarotidRisk FactorsCarotid BodyUltrasonography, Doppler, ColorCarotid SinusUltrasonography, DopplerCarotid Artery, ExternalUltrasonography, Doppler, DuplexCarotid Artery ThrombosisUltrasonography, PrenatalCarotid Artery InjuriesUltrasonography, Doppler, TranscranialEndosonographyUltrasonography, Doppler, PulsedUltrasonography, MammarySensitivity and SpecificityUltrasonography, InterventionalProspective StudiesTomography, X-Ray ComputedCarotid Body TumorCarotid Artery, Internal, DissectionEndarterectomyPredictive Value of TestsCerebral AngiographyArteriosclerosisIschemic Attack, TransientAngiographyStentsContrast MediaRetrospective StudiesCerebrovascular DisordersMagnetic Resonance AngiographyReproducibility of ResultsSulfur HexafluorideStrokeTreatment OutcomeArterial Occlusive DiseasesCerebrovascular CirculationAngiography, Digital SubtractionAngioplastyFollow-Up StudiesPregnancyChemoreceptor CellsMagnetic Resonance ImagingTime FactorsImaging, Three-DimensionalAngioplasty, BalloonAuscultationIntracranial EmbolismAtherosclerosisBlood PressureIntracranial ArteriosclerosisAmaurosis FugaxBrain IschemiaUrographyObserver VariationRegional Blood FlowPreoperative CarePostoperative ComplicationsSeverity of Illness IndexFetal DiseasesPressoreceptorsEchoencephalographyScrotumPulsatile FlowNeckPlaque, AtheroscleroticCystsImage EnhancementVertebral ArteryConstriction, PathologicPalpationIntracranial Embolism and ThrombosisRisk AssessmentJugular VeinsAbdomenRecurrenceDiagnostic ImagingCavernous SinusCerebral ArteriesCatheterizationFemoral ArteryCircle of WillisIntraoperative CareCerebral InfarctionGestational AgeAneurysmToe JointThyroid NoduleArteries