Figure 2. Multiplanar coronal reconstruction from CT data (collimation, 2.5 mm; table feed, 15 mm per rotation) of the trachea (T) and right and left main bronchi in a 15-year-old boy with cough. Coronal reformation obtained at end inspiration shows normal caliber of the trachea. Image was reconstructed by using 3-mm section thickness and 1-mm table intervals.