Carotid StenosisEndarterectomy, CarotidCarotid ArteriesCarotid Artery DiseasesCarotid Artery, InternalCarotid Artery, CommonUltrasonography, Doppler, DuplexAortic Valve StenosisUltrasonographyEndarterectomyStentsIschemic Attack, TransientConstriction, PathologicAngioplastyCoronary StenosisStrokeCerebrovascular DisordersCarotid Artery, ExternalCarotid BodySpinal StenosisUltrasonography, Doppler, TranscranialCarotid SinusTracheal StenosisMagnetic Resonance AngiographyUltrasonography, Doppler, ColorAngiography, Digital SubtractionProspective StudiesRisk FactorsAmaurosis FugaxCerebral AngiographyUltrasonography, DopplerAngioplasty, BalloonAngiographyUltrasonicsCarotid Artery ThrombosisTreatment OutcomeBlood Flow VelocitySeverity of Illness IndexFollow-Up StudiesPyloric StenosisIntracranial EmbolismMitral Valve StenosisPredictive Value of TestsSensitivity and SpecificityPulmonary Valve StenosisArterial Occlusive DiseasesRetrospective StudiesIntracranial ArteriosclerosisTomography, X-Ray ComputedAuscultationUltrasonic TherapyUltrasonography, InterventionalBrain IschemiaRecurrenceCerebrovascular CirculationTime FactorsTunica IntimaAsymptomatic DiseasesPostoperative ComplicationsArteriosclerosisObserver VariationRisk AssessmentTunica MediaCarotid Artery InjuriesReproducibility of ResultsHigh-Intensity Focused Ultrasound AblationEmbolismCarotid Intima-Media ThicknessDoppler EffectContrast MediaCerebral InfarctionMicrobubblesPlaque, AtheroscleroticMiddle Cerebral ArteryRetinal Artery OcclusionCalcinosisHemodynamicsImaging, Three-DimensionalPatient SelectionMagnetic Resonance ImagingCranial Nerve InjuriesRenal Artery ObstructionCoronary AngiographyAtherosclerosisIntracranial Embolism and ThrombosisUltrasonography, PrenatalBlood PressureLife TablesAcetazolamideAortic Stenosis, SubvalvularCatheterizationVascular PatencyCoronary Artery DiseaseImage Processing, Computer-AssistedAortic Stenosis, SupravalvularVertebrobasilar InsufficiencyTransducersCollateral CirculationCarotid Artery, Internal, DissectionCoronary Disease