Bland-Altman plots of the correlations between the two consecutive computed tomography (CT) lung volumes in healthy participants (group1), patients with obstructive lung disease (group 2), and patients with restrictive lung disease (group 3).

<p><b>(a)</b> in group 1, <b>(b)</b> group 2,<b>(c)</b> group 3. The dashed line indicates the mean bias, while the solid line indicates ±1.96 standard deviation.