Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are higher than the prior exam with improvement of bibasilar atelectasis . There is no significant change in the bilateral ground - glass opacities . Tracheostomy and left - sided PICC line are in adequate position . There is no significant pleural effusion or pneumothorax . Mediastinal and cardiac contours are unchanged .
    OUTPUT:
    
Except for higher lung volumes , there is no significant change since the previous exam .