Detection of tracheal branching with computerized tomography: The relationship between the angles and age-gender

Figure 1 Diagram showing the study population.

Figure 2 Measurement of tracheobronchial angles on coronal plane thoracic images in pediatric and adult patients with MinIP technique. A: Tracheobronchial angle measurements of a 9-year-old male pediatric patient are shown, B: Tracheobronchial angle measurements of a 25-year-old adult male patient are shown: (1) Angle of right and left main bronchus in coronal plane; (2) R upper-intermedius (coronal): The angle of the right upper lobe bronchus and the right intermedius bronchus in the coronal plane; (3) R middle-lower (coronal): The angle of the right middle lobe bronchus and the right lower lobe bronchus in the coronal plane; (4) L upper-lower (coronal): The angle of left upper lobe bronchus and left upper lobe bronchus in the coronal plane.