Fig. 1
From: Predictors of intubation and mortality in COVID-19 patients: a retrospective study
Quantitative CT analysis of a 74-year-old male COVID-19 patient. a Non-contrast chest CT on admission, showing a characteristic bilateral and subpleural ground glass opacity (GGO). b Well-aerated parenchyma segmented semi-automatically by a 3D slicer; the blue area is the result of the subtraction of the all parenchyma (HU − 1100; − 250) with GGO (− 700; − 250) + consolidation (− 250; + 150). c The GGO area, obtained by semi-automatic segmentation (HU − 700; − 250). d Manual segmentation of consolidation areas (HU − 250; + 150)