AnesthesiaAnesthesia, GeneralAnesthesia, LocalAnesthesia, EpiduralAnesthesia, SpinalAnesthesia, InhalationAnesthesia, ConductionAnesthesia, IntravenousAnesthesia, ObstetricalAnesthesia Recovery PeriodAnesthesia, DentalTomography, OpticalEquipment DesignAnesthetics, InhalationAnesthetics, IntravenousAdjuvants, AnesthesiaPropofolPhantoms, ImagingPositron-Emission TomographyWhole Body ImagingIsofluraneMethyl EthersAnesthesiologyAnesthetics, LocalEquipment Failure AnalysisAnesthetics, CombinedVeterinariansDisease Models, AnimalMonitoring, IntraoperativeAnestheticsNitrous OxideTomographyX-Ray MicrotomographyHalothaneLidocaineHospitals, AnimalRadiopharmaceuticalsAnesthesia, Closed-CircuitReproducibility of ResultsFentanylAnesthetics, GeneralBupivacaineAnimals, LaboratoryImage Processing, Computer-AssistedPreanesthetic MedicationPhotoacoustic TechniquesDiagnostic ImagingModels, AnimalKetamineAmbulatory Surgical ProceduresNerve BlockThiopentalMicroscopy, AcousticOptical ImagingAnesthesia, CaudalSurgery, VeterinaryDogsImaging, Three-DimensionalFluorine RadioisotopesPentobarbitalAnesthetics, DissociativeVeterinary MedicineEnfluraneXylazineIntubation, IntratrachealXenon IsotopesAnesthesia Department, HospitalDog DiseasesMolecular ImagingPhotonsConscious SedationTime FactorsTomography, Emission-Computed, Single-PhotonAnesthesia, IntratrachealIntraoperative ComplicationsContrast MediaMagnetic Resonance ImagingBody SizePain, PostoperativeTransducersImage EnhancementShrewsMiniaturizationIntraoperative PeriodPichinde virusSensitivity and SpecificityAtmosphere Exposure ChambersCopper RadioisotopesAnesthesia and AnalgesiaAnimal ExperimentationAnatomy, Cross-SectionalCesarean SectionTomography, X-Ray ComputedCat DiseasesBrainAtlases as TopicCatsFluorodeoxyglucose F18PrilocaineRats, Sprague-Dawley