Table 1

List of relevant terms and abbreviations

ARDSAcute respiratory distress syndrome
HUHounsfield units
WarpingImage processing methodology to register (superimpose) anatomical structures between scans
Severe injuryLung tissue with irreversibly low gas content (ie, density >−300 HU)
Unstable inflationLung tissue with elevated changes in EI/EE gas content and with high risk of worsening injury (ie, increasing density) at later times
PRMParametric response map
ROCReceiver operating characteristic
VTTidal volume
PEEPPositive end-expiratory pressure
CdynDynamic compliance
PIPPeak inspiratory pressure