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Fig. 3 | Respiratory Research

Fig. 3

From: Associations of airway tree to lung volume ratio on computed tomography with lung function and symptoms in chronic obstructive pulmonary disease

Fig. 3

Associations of airway size, lung volume, and airway to lung volume ratio with airflow obstruction. a Percentage ratio of lumen area of subsegmental airways (Ai) to cubic root squared right lung volume (rLV), b percentage ratio of rLV to predicted total lung capacity (pTLC), c percentage ratio of airway volume (AWV) to pTLC, and (d) airway volume percent (AWV%) were correlated with percentage of predicted forced expiratory volume in 1 s (%FEV1). r value indicates the Pearson correlation coefficient. ** indicates p < 0.005

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Respiratory Research

ISSN: 1465-993X

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