Vasospasm, IntracranialSubarachnoid HemorrhageCoronary VasospasmBasilar ArteryIschemic Attack, TransientCerebral AngiographyCisterna MagnaIntracranial AneurysmSpasmPapaverineAneurysm, RupturedCerebral ArteriesUltrasonography, Doppler, TranscranialErgonovineNimodipineNicardipineCerebrovascular CirculationVasoconstrictionAngiography, Digital SubtractionPregnatrienesVasodilator AgentsAngina Pectoris, VariantInfusions, Intra-ArterialMiddle Cerebral ArteryTomography, X-Ray ComputedDogsSubarachnoid SpaceRupture, SpontaneousInjections, Intra-ArterialDioxanesPerfusion ImagingVentriculostomy1-(5-Isoquinolinesulfonyl)-2-MethylpiperazineDisease Models, AnimalRaynaud DiseaseBrain IschemiaTreatment OutcomeFormamidesBlood Flow VelocityIofetamineMuscle, Smooth, VascularBrainEndothelin-1Calcium Channel BlockersGlasgow Coma ScaleVascular DiseasesRabbitsHemodilutionVasoconstrictor AgentsSurgical InstrumentsCerebral Infarctionrho-Associated KinasesSerotoninInjections, IntraventricularOxyhemoglobinsCraniotomyAnterior Cerebral ArteryGlasgow Outcome ScaleVertebral ArteryAngiographyChlorobutanolNitroglycerinCerebrospinal FluidIntracranial PressureTime FactorsLysergic AcidAngioplasty, BalloonMammary ArteriesVasodilationEmbolization, Therapeutic