StrokeIschemic Attack, TransientBrain IschemiaFibrinolytic AgentsTissue Plasminogen ActivatorAcute DiseaseThrombolytic TherapyCerebrovascular DisordersCerebral HemorrhageCerebral InfarctionIntracranial ThrombosisTreatment OutcomeIntracranial HemorrhagesRisk FactorsTime FactorsCerebral AngiographyInfarction, Middle Cerebral ArteryTomography, X-Ray ComputedProspective StudiesMechanical ThrombolysisCerebral RevascularizationIntracranial EmbolismThrombectomyBrain InfarctionReperfusionFollow-Up StudiesPredictive Value of TestsSeverity of Illness IndexCarotid StenosisIntracranial Arterial DiseasesRetrospective StudiesDiffusion Magnetic Resonance ImagingMagnetic Resonance ImagingCerebrovascular CirculationMagnetic Resonance AngiographyAnticoagulantsRecurrenceCohort StudiesIntracranial ArteriosclerosisCarotid Artery DiseasesInjections, Intra-ArterialBrainCerebral ArteriesPlatelet Aggregation InhibitorsNeuroprotective AgentsEndarterectomy, CarotidUltrasonography, Doppler, TranscranialEmergency Medical ServicesNeurologyAspirinAtrial FibrillationInfusions, Intra-ArterialIntracranial Embolism and ThrombosisMiddle Cerebral ArteryInjections, IntravenousRegistriesVertebrobasilar InsufficiencyEmbolismCarotid Artery, InternalComorbidityRecovery of FunctionNeurologic ExaminationPrognosisRiskIncidenceOdds RatioAge FactorsEmbolectomyInfusions, IntravenousInfarction, Posterior Cerebral ArteryMultivariate AnalysisRisk AssessmentDouble-Blind MethodCarotid ArteriesPerfusion ImagingIschemiaLogistic ModelsCarotid Artery ThrombosisRandomized Controlled Trials as TopicCase-Control StudiesArterial Occlusive DiseasesHeparinoidsSecondary PreventionCerebral Arterial DiseasesBrain EdemaWarfarinInfarction, Anterior Cerebral ArteryEndovascular ProceduresPlasminogen ActivatorsEndarterectomyAdministration, IntravenousHypertensionBiological MarkersRegression AnalysisStentsUnited StatesHemorrhageThromboembolismDatabases, FactualOutcome Assessment (Health Care)