Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to the prior radiograph from several hours earlier , bibasilar linear opacities are again demonstrated suggestive of atelectasis . There are no confluent areas of consolidation to suggest the presence of pneumonia . Compression deformities at T12 and L1 have been more fully evaluated by a recent chest CT
    OUTPUT:
    
Bibasilar atelectasis . No radiographic evidence of pneumonia .