Localizing air leak and collateral ventilation in pneumothorax

(A) Occlusion of the right upper lobe showed disappearance of the airflow and negative pressure created by inspiratory phase and pleural suction indicating air leak from this lobe.

(B) Occlusion of the anterior airway segment of the right upper lobe showed constant negative pressure displayed by the Chartis system confirming the air leak from the airway segment.