Intraoperative CareIntraoperative PeriodMonitoring, IntraoperativeIntraoperative ComplicationsFrozen SectionsReproducibility of ResultsPostoperative ComplicationsNeuronavigationTreatment OutcomeBlood Loss, SurgicalSurgery, Computer-AssistedIntraoperative AwarenessProspective StudiesRetrospective StudiesTime FactorsSensitivity and SpecificityNeurosurgical ProceduresAnesthesia, GeneralIntraoperative Neurophysiological MonitoringPreoperative CareTomography, X-Ray ComputedFollow-Up StudiesParathyroidectomyEquipment DesignLaparoscopyPredictive Value of TestsMagnetic Resonance ImagingPostoperative PeriodEchocardiography, TransesophagealObserver VariationPostoperative CareFeasibility StudiesImaging, Three-DimensionalReoperationAnesthesiaSurgical Procedures, Minimally InvasiveBlood Transfusion, AutologousIndocyanine GreenNeurosurgerySentinel Lymph Node BiopsySurgical Procedures, OperativeCardiopulmonary BypassImage Processing, Computer-AssistedRisk FactorsCholangiographyBlood Flow VelocityAlgorithmsUltrasonographyReference ValuesCalibrationMonitoring, PhysiologicPerioperative CareCardiac Surgical ProceduresHemodynamicsCraniotomyInfrared RaysSpectroscopy, Near-InfraredHemostasis, SurgicalHepatectomyBlood TransfusionGamma CamerasPostoperative HemorrhageBrain NeoplasmsPain, PostoperativePhantoms, ImagingAbdomenPhacoemulsificationDiagnostic Techniques, SurgicalLength of StayOperating RoomsBlood PressureHyperparathyroidismAnalysis of VarianceFluid TherapyLuminescent MeasurementsOperative Blood SalvageRisk AssessmentHypothermiaOperative TimeCholecystectomy, LaparoscopicAnastomosis, SurgicalEvoked Potentials, SomatosensorySuture TechniquesSurgical InstrumentsPain MeasurementOxygenPathology, SurgicalAnesthesia, LocalAnesthesia Recovery PeriodFluoroscopyEndoscopyUltrasonography, InterventionalBiological MarkersEquipment Failure AnalysisCoronary Artery BypassStatistics, NonparametricLiver TransplantationVascular Surgical ProceduresDouble-Blind MethodEndarterectomy, Carotid