Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The ETT terminates approximately 6 .5 cm above the carina . There are bilateral PICC lines , the right terminating at the cavoatrial junction , and the left terminating in the distal SVC . There is an NG tube coursing below the diaphragm , however the tip is not visualized on this image . The bibasilar opacities have decreased , representing improving pleural effusions or may be due to more upright positioning . The degree of pulmonary edema , most evident in the right lung , has also improved . The cardiomediastinal silhouette is stable . There is no pneumothorax .
    OUTPUT:
    
1 . Appropriate and unchanged positioning of all lines and tubes . 2 . Improving bibasilar opacities , representing a combination of pleural fluid and atelectasis , which may be due to more upright positioning . 3 . Improving pulmonary edema .