Lung Volume MeasurementsPlethysmography, Whole BodyLungBlood Volume DeterminationImaging, Three-DimensionalFunctional Residual CapacityTotal Lung CapacityReproducibility of ResultsLung DiseasesBlood VolumeObserver VariationLung NeoplasmsPulmonary EmphysemaRespiratory MechanicsLung InjuryPneumonectomyResidual VolumeLung ComplianceImage Processing, Computer-AssistedTomography, X-Ray ComputedRespiratory Function TestsUltrasonography, PrenatalMagnetic Resonance ImagingOrgan SizeErythrocyte VolumeLung TransplantationEnophthalmosCarcinoma, Non-Small-Cell LungSensitivity and SpecificityPlasma VolumeVital CapacityForced Expiratory VolumeCardiac VolumeTidal VolumeHeliumOrbital FracturesSerum Albumin, Radio-IodinatedImage Interpretation, Computer-AssistedAcute Lung InjuryReference ValuesUltrasonographyRadiographic Image Interpretation, Computer-AssistedProspective StudiesGestational AgeRespirationPulmonary Diffusing CapacityStroke VolumeEmphysemaPulmonary Gas ExchangeAirway ResistancePulmonary AlveoliInhalationDiaphragmSpirometryExpiratory Reserve VolumePregnancyPressureRespiratory MusclesPulmonary AtelectasisHernia, Diaphragmatic