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. 2020 Apr 25;158(3):1090–1103. doi: 10.1016/j.chest.2020.02.076

Figure 1.

Figure 1

Fitted regression lines for pulmonary function test metrics vs parametric response mapping (PRM) metrics. A, FEV1 percent predicted vs percentage air trapping by PRM. B, FEV1/FVC vs percentage air trapping by PRM. C, RV vs percentage air trapping by PRM. D, RV vs expiratory volume by PRM. E, TLC vs inspiratory volume by PRM. F, TLC vs percentage parenchymal opacities by PRM. The gray region represents the 95% CI. OP = organizing pneumonia; RV = residual volume; TLC = total lung capacity.