Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The endotracheal tube and nasogastric tube have been removed . The left - sided PICC is at the cavoatrial junction . Improved aeration of the left lower lobe and right lower lobe . Linear subsegmental along the right minor fissure is unchanged . No interstitial edema . No pneumothorax or significant pleural effusions .
    OUTPUT:
    
Interval improvement in the bibasal atelectasis . No pulmonary edema .