PIBO, post-infectious bronchiolitis obliterans; PFT, pulmonary function
test; BD, bronchodilator.
Figure 1. Chest HRCT scans of a 10-years old boy with PIBO. (A) mosaic
perfusion pattern. (B) bronchial wall thickening and bronchial dilation.
Figure 2. Observed (solid lines) and predicted (dashed lines)
progression of (A) FEV1, (B) FVC, (C)
FEV1/FVC, (D)MMEF25%–75%(E)FEV1 improvement rate (BD response),
(F)MMEF25%–75% improvement rate (BD response). Each
colored line represents one patient. FVC, forced vital capacity; FEV1,
forced expiratory volume in 1 s; MMEF25%–75%, maximal
midexpiratory flow velocity 25%-75%; BD, bronchodilator.