Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac device generator is in the left chest wall with intact leads in the right atrium and right ventricle . Swan - Ganz catheter and nasogastric tube have been removed . There is no pneumothorax . Moderate cardiomegaly is unchanged . Lung volumes are low , but slightly increased compared to prior examination resulting in improved bibasilar aeration with there is persistent patchy opacities , likely atelectasis .
    OUTPUT:
    
1 . Removal of Swan - Ganz catheter and nasogastric tube . No pneumothorax . 2 . Decreased pulmonary edema with improved bilateral aeration .