Pulmonary Emphysema in Cystic Fibrosis Detected by Densitometry on Chest Multidetector Computed Tomography
Figure 2
Quantification of emphysema in cystic fibrosis (CF) lung disease by densitometry.
(A–F) Box-and-whisker plots for lung volume (LV) (A), emphysema volume (EV) (B) and emphysema index (EI) (C), lung weight (LW) (D), mean lung density (MLD) (E) and 15th percentile of the lung density histogram (15th) (F) in the non-CF control group (CONTROL) and patients with CF. The central line represents the median, the box encompasses the 25th-75th percentiles, whiskers show 10th and 90th percentiles, and closed circles (•) represent individual outliers. * P<0.05, † P<0.01 and ‡ P<0.001 compared to CONTROL.