Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is had median sternotomy and CABG . The cardiomediastinal silhouette is normal . If any , there are minimal bilateral pleural effusions with improved bibasilar atelectasis . ETT , left PICC line , and NG tube are unchanged in position when compared to ___ study . No focal consolidations or pneumothorax are seen .
    OUTPUT:
    
Improved bibasilar atelectasis and no evidence of pneumonia .