Fig 1.
Illustration of how to calculate the COVID19-LDCT score.
A. The triangle with red borders shows the 6th segment of the left lung with a unique GGO corresponding to minimal impairment. B. The triangle with red borders shows the 6th segment of the right lung with GGO inside involving 50% of the segment corresponding to intermediate impairment. C. Two triangles showing the 10th and the 9th segments of the left lung, where the extent of GGO was > 50% and 50%, corresponding to severe and intermediate impairment, respectively.
Table 1.
Characteristics of the population and clinical data.
Fig 2.
Chest CT of patients with laboratory-proven COVID-19 pneumonia and paucisymptomatic patients.
Minimal form (a-c): Axial (a,b) and frontal reconstructions (c) of patchy ground-glass opacities (white arrows) with segmental parenchyma involvement of 1 to 3 patchy lesions. Intermediate form (d-f): Axial (d,e) and frontal reconstructions (f) of patchy ground-glass opacities (white arrows), band-like appearance (dotted arrow), and areas of consolidation (arrowheads) with involvement less than 50%. Severe form (g-i): Axial (g,h) and frontal reconstructions (i) of patchy ground-glass opacities (white arrows), band-like appearance (dotted arrow), and areas of consolidation (arrowheads) with an involvement greater than 50%.
Fig 3.
Correlation between the NEWS and COVID19-LDCT score.
A significant correlation was found. Pearson coefficient = 0.48; p < 0.001.
Table 2.
Imaging data.
Fig 4.
Pulse oxymetry according to LDCT and dyspnea.
A significant difference was found between pneumonia and non pneumonia on LDCT concerning the oxymetry (p = 0.07) and between pneumonia and non pneumonia on LDCT among patient without dyspnea (p = 0.028). LDCT: low dose computed tomography.
Table 3.
Low- and high-risk groups.