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.