Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderately low lung volumes persist . Previously noted patchy opacities in the left lower lung and bandlike atelectasis in the right lower lung have improved . Residual bibasilar opacities likely reflect atelectasis . There is no evidence of consolidation . No pleural effusion or pneumothorax . Cardiomediastinal silhouette is stable . A thick horizontally oriented radiodensity projecting over the heart relates to vertebroplasty material as seen on the CT from ___ .
    OUTPUT:
    
Persistent low lung volumes and bibasilar atelectasis .