Figure 3 | Scientific Reports

Figure 3

From: Associations of pulmonary and extrapulmonary computed tomographic manifestations with impaired physical activity in symptomatic patients with chronic obstructive pulmonary disease

Figure 3

Examples of pulmonary and extrapulmonary CT findings in symptomatic patients with and without physical inactivity. (A) Inspiratory and expiratory CT in symptomatic patient with COPD and preserved physical activity (COPD assessment test [CAT] = 20 and Life-Space assessment [LSA] = 96). (B) CT in symptomatic patient with COPD and impaired physical activity (CAT = 21 and LSA = 45). Green and purple segmentation indicate pectoralis muscles and subcutaneous adipose tissues. Red and yellow regions indicate emphysema on inspiratory CT and air-trapping on expiratory CT. Of note, pectoralis muscle and adjacent subcutaneous adipose tissue were smaller, and emphysema and air-trapping were more severe in the patient with lower LSA (B) than in the patient with higher LSA (A).

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