Radiography, ThoracicTomography, X-Ray ComputedRadiographic Image Interpretation, Computer-AssistedRadiography, Dual-Energy Scanned ProjectionSolitary Pulmonary NoduleRadiographic Image EnhancementImaging, Three-DimensionalReproducibility of ResultsLung NeoplasmsSensitivity and SpecificityBlood VolumePlasma VolumeStroke VolumeLung Volume MeasurementsErythrocyte VolumeMagnetic Resonance ImagingBlood Volume DeterminationForced Expiratory VolumeImage Processing, Computer-AssistedOrgan SizePositron-Emission TomographyResidual VolumeTime FactorsBrainCell SizeMultimodal ImagingRadiopharmaceuticalsImage Interpretation, Computer-Assisted