Fig. 3From: Spirometric assessment of emphysema presence and severity as measured by quantitative CT and CT-based radiomics in COPDROC curve over the range of the ESI model output for severe emphysema a and no emphysema b. Severe emphysema was defined at CT scan as %LAA-950insp ≥ 14 by VIDA whereas no emphysema was defined at CT scan as %LAA-950insp < 6 by VIDA. The total AUC area was of 0.88 for severe emphysema and 0.86 for no emphysemaBack to article page