Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right subclavian central venous catheter is unchanged in position with the tip terminating in the right atrium . Low inspiratory lung volumes are improved from ___ . Bibasilar opacities are persistent but improved from the preceding radiograph consistent with small bilateral pleural effusions and improving atelectasis . Mild pulmonary vascular congestion is unchanged . No pneumothorax is present . The cardiomediastinal silhouette is within normal limits and unchanged . The heart is top normal in size .
    OUTPUT:
    
1 . Improved but persistent bibasilar opacities are consistent with small bilateral pleural effusions and associated atelectasis . 2 . Mild pulmonary vascular congestion .