Figure 2.
Correlations between NLVCR of upper lobes (A), lower lobes (B), and FEV1%P results.
Notes: FEV1%P results were significantly correlated with NLVCR values for the lower lobes (B), whereas this correlation was not significant for the upper lobes (A).
Abbreviations: FEV1%P, forced expiratory volume in 1 second measured as percent predicted; LLL, left lower lobe; LUL, left upper lobe; NLVCR, normal lobar volume collapsibility ratio; RML, right middle lobe; RLL, right lower lobe; RUL, right upper lobe.