Cerebral VentriculitisIntracranial AneurysmCerebral ArteriesMiddle Cerebral ArteryInfarction, Middle Cerebral ArteryCerebral AngiographyCerebral InfarctionCerebral VentriclesCerebrovascular CirculationAneurysmBrain IschemiaAneurysm, RupturedSubarachnoid HemorrhageEncephalitisHydrocephalusEmbolization, TherapeuticBrainIschemic Attack, TransientCerebral Arterial DiseasesVentriculostomyCraniotomyMagnetic Resonance ImagingTomography, X-Ray ComputedArterial Occlusive DiseasesIntracranial Embolism and ThrombosisBrain EdemaSpiruridaAneurysm, InfectedCerebral PalsyCerebral VentriculographyCerebrospinal Fluid ShuntsSurgical InstrumentsReperfusionUltrasonography, Doppler, TranscranialVentriculoperitoneal ShuntMeningitisAngiography, Digital SubtractionAortic AneurysmCatsCerebrovascular DisordersMeningitis, FungalCerebral VeinsAnterior Cerebral ArteryCerebral HemorrhageAphasiaBrain AbscessNeuroprotective AgentsTime FactorsHeart AneurysmCerebral CortexBlood Flow VelocityStrokeMeningitis, BacterialAortic Aneurysm, ThoracicCerebrospinal FluidMalaria, CerebralTreatment OutcomeNeurosurgical ProceduresInjections, IntraventricularEndovascular ProceduresAneurysm, DissectingTuberculosis, MeningealMagnetic Resonance AngiographyPlatinumCircle of Willis