Figure 3
From: CT-derived 3D-diaphragm motion in emphysema and IPF compared to normal subjects
Correlation between %LAAexp and magnitude of displacement vectors in emphysema patients. %LAAexp (%) represents percentage of lung volume on expiration scan with attenuation less than -856 Hounsfield units (HU). (A) Correlation between %LAAexp (%) and 3D displacement of the diaphragm. %LAAexp (%) is negatively correlated with 3D displacement of the diaphragm (r = − 0.546, P < 0.0001). (B) Correlation between %LAAexp (%) and apico-basal displacement of the diaphragm. %LAAexp (%) is negatively correlated with apico-basal displacement of the diaphragm (r = − 0.521, P < 0.0001).
