ThrombosisIntracranial Arterial DiseasesCarotid Artery ThrombosisConstriction, PathologicVenous ThrombosisArterial Occlusive DiseasesCarotid StenosisCerebral Arterial DiseasesIntracranial ArteriosclerosisAortic Valve StenosisBleeding TimeCoronary StenosisCoronary ThrombosisRenal Artery ObstructionHemostasisPlatelet AggregationSpinal StenosisArteriesTracheal StenosisAntiphospholipid SyndromeCerebral AngiographyAngiographySinus Thrombosis, IntracranialMagnetic Resonance AngiographyAnticoagulantsAspirinBlood PlateletsCarotid ArteriesAngioplasty, BalloonStentsNoxaeFibrinolytic AgentsAngiography, Digital SubtractionBlood CoagulationThrombophiliaPyloric StenosisMitral Valve StenosisPlatelet ActivationStrokeIliac ArteryPulmonary Valve StenosisIntracranial ThrombosisRisk FactorsPlatelet Aggregation InhibitorsRecurrencePartial Thromboplastin TimeArteriosclerosis ObliteransFollow-Up StudiesBlood Flow VelocityVertebrobasilar InsufficiencyPlatelet AdhesivenessFactor VMagnoliaHeparinCoronary AngiographyLupus Coagulation InhibitorActivated Protein C ResistanceThromboplastinThrombectomyProspective StudiesRetrospective StudiesIschemic Attack, TransientAntibodies, AntiphospholipidUltrasonography, Doppler, Transcranialbeta 2-Glycoprotein ITomography, X-Ray ComputedFemoral ArteryFibrinolysisRenal ArteryFactor XII DeficiencyAntithrombin III DeficiencyThrombin TimeTreatment OutcomeTime FactorsAntibodies, AnticardiolipinProtein S DeficiencyAntithrombinsvon Willebrand FactorUltrasonography, Doppler, ColorRegional Blood FlowHemodynamicsPredictive Value of TestsCollateral CirculationProtein C DeficiencyHemorrhageCarotid Artery DiseasesCerebrovascular DisordersSensitivity and SpecificityPhenindioneSeverity of Illness IndexDisease Models, AnimalFerric CompoundsCerebral ArteriesProthrombinProtein CUltrasonography, Doppler, DuplexThromboembolismFibrinPhlebographyThrombin