The main non-invasive imaging techniques for extravascular lung water

Imaging techniquesChest X-rayChest CTCMRPET-SPECTLU
Relative cost110201001
Radiation12000250–5000
CO2 (kg)1205020–301
BedsideYesNoNoNoYes

CMR: cardiovascular magnetic resonance; CT: computed tomography; LU: lung ultrasound; PET: positron emission tomography; SPECT: single-photon emission tomography. Radiation is expressed in multiples of chest X-ray (postero-anterior projection)