Diffusion Magnetic Resonance ImagingStrokeMagnetic Resonance ImagingDiffusionBrain IschemiaDiffusion Tensor ImagingBrainImage Processing, Computer-AssistedFibrinolytic AgentsTissue Plasminogen ActivatorAcute DiseaseMagnetic Resonance SpectroscopyThrombolytic TherapyCerebral HemorrhageMagnetic Resonance AngiographyCerebral InfarctionCerebrovascular DisordersTreatment OutcomeIntracranial ThrombosisTomography, X-Ray ComputedIntracranial HemorrhagesMechanical ThrombolysisInfarction, Middle Cerebral ArteryTime FactorsIschemic Attack, TransientThrombectomyProspective StudiesReperfusionCerebral AngiographyRisk FactorsCerebral RevascularizationBrain InfarctionPredictive Value of TestsSeverity of Illness IndexIntracranial EmbolismMagnetic Resonance Imaging, CineRetrospective StudiesCerebrovascular CirculationInjections, Intra-ArterialContrast MediaFollow-Up StudiesNeuroprotective AgentsInjections, IntravenousReproducibility of ResultsInfusions, Intra-ArterialRecovery of FunctionCohort StudiesSensitivity and SpecificityIntracranial Arterial DiseasesImage EnhancementImage Interpretation, Computer-AssistedMiddle Cerebral ArteryPerfusion ImagingAnticoagulantsInfusions, IntravenousCerebral ArteriesEmbolectomyBrain EdemaCase-Control StudiesPrognosisUltrasonography, Doppler, TranscranialNeurologic ExaminationGadolinium DTPABrain MappingRegistriesInfarction, Anterior Cerebral ArteryOdds RatioHeparinoidsDouble-Blind MethodRecurrenceIntracranial ArteriosclerosisMultivariate AnalysisPlatelet Aggregation InhibitorsEmergency Medical ServicesIschemiaEndovascular ProceduresComorbidityAdministration, IntravenousEcho-Planar ImagingNuclear Magnetic Resonance, BiomolecularAge FactorsPlasminogen ActivatorsGadoliniumBiological MarkersAtrial FibrillationAnisotropyLogistic ModelsFeasibility StudiesIncidenceCarotid StenosisCerebral Arterial DiseasesRegression AnalysisPilot ProjectsRandomized Controlled Trials as TopicRiskImaging, Three-DimensionalAspirinRisk AssessmentAlgorithmsVertebrobasilar Insufficiency