Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes with interval improvement in bibasilar linear atelectasis . No pleural effusions or pneumothorax . Stable cardiomegaly . Unchanged sternotomy sutures and surgical clips projecting over the mediastinum . Enteric tube terminates in the stomach . Partially visualized are distended bowel loops in the upper abdomen .
    OUTPUT:
    
Interval improvement in bibasilar linear opacities with persistent low lung volumes and unchanged cardiomegaly . No pleural effusions or pneumothorax .