HematomaHematoma, Epidural, CranialHematoma, SubduralInjectionsHematoma, Subdural, ChronicHematoma, Subdural, AcuteSolutionsHematoma, Epidural, SpinalHematoma, Subdural, IntracranialHematoma, Subdural, SpinalInjections, IntravenousInjections, IntramuscularInjections, IntralesionalInjections, SubcutaneousCerebral HemorrhageInjections, Intra-ArticularTrephiningInjections, IntraperitonealTomography, X-Ray ComputedCraniotomyInjections, IntraventricularInjections, IntradermalTime FactorsInjections, EpiduralInjections, Intra-ArterialSubdural SpaceIntravitreal InjectionsInjections, SpinalPharmaceutical SolutionsInjections, JetInjections, IntraocularIsotonic SolutionsSkull FracturesRats, Sprague-DawleyTreatment OutcomeCerebral Hemorrhage, TraumaticFlow Injection AnalysisDisease Models, AnimalDura MaterMicroinjectionsMagnetic Resonance ImagingBasal Ganglia HemorrhageCraniocerebral TraumaDose-Response Relationship, DrugNeurosurgical ProceduresHypertonic SolutionsGlasgow Coma ScaleNeedlesRats, WistarRectus AbdominisOrgan Preservation SolutionsRabbitsSubstance Abuse, IntravenousIntracranial HemorrhagesSperm Injections, IntracytoplasmicHead Injuries, ClosedSyringesDialysis SolutionsSuctionSubdural EffusionMice, Inbred C57BLBrainDrainageRemission, SpontaneousCranial Fossa, PosteriorRetrospective StudiesLaminectomyExtravasation of Diagnostic and Therapeutic MaterialsAnesthetics, LocalAcute DiseaseVitreous BodyLidocainePostoperative ComplicationsCerebral AngiographyProspective StudiesRetroperitoneal SpaceAnticoagulantsLigamentum FlavumSodium ChlorideLiverIntracranial Hemorrhage, HypertensiveEsophageal DiseasesRats, Inbred StrainsTriamcinolone AcetonideWaterTissue DistributionContrast MediaMagnetic Resonance SpectroscopyMice, Inbred BALB CKineticsBrain EdemaHydrogen-Ion ConcentrationDecompression, SurgicalArachnoid CystsPregnancyBrain Hemorrhage, TraumaticTriamcinoloneSubarachnoid HemorrhageStereotaxic TechniquesPain Measurement