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Table 3 Quantitative data of lung lesions in chest CT of COVID-19 pneumonia patients

From: Automated quantification of COVID-19 pneumonia severity in chest CT using histogram-based multi-level thresholding segmentation

  Group1 (common) n = 104 Mean (SD) Range Group 2 (severe) n = 49 Mean (SD) Range
Total lung volume 3312.8 (920.8) 1719 to 4982 2131.8 (462.3) 1454 to 3997
Lung lesion volume (cc)     
 volGGOs 1027.7 (298.5) 441 to 1863 1236.9 (243.1) 720 to 1894
 volConsolidation 63.8 (21.4) 48 to 142 82.7 (24.6) 76 to 203
 Total 1257.3 (154.9) 503 to 2021 1331.5 (117) 783 to 2123
Lung lesion burden (%)     
 %GGOs 32.6 (10.3) 9.7 to 48.5 58.6 (7.1) 48.7 to 73.2
 %Consolidation 1.1 (0.4) 0.5 to 2.1 1.9 (0.7) 1.2 to 3.4
 Total 33.9 (11.2) 10.3 to 49.6 60.7 (7.4) 51.3 to 73.1
Mean lung density − 768.6 (36.9) − 660 to − 854 − 685.9 (34.1) − 604 to − 771
Lesion mean attenuation     
 GGOs − 543.5 (60.8) − 341 to − 687 − 496.7 (51.3) − 327 to − 628
 Consolidation − 11.7 (24.8) − 29 to 47 − 6.4 (48.9) − 3 to 68