Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are stable . Slight interval improvement of pulmonary edema . The cardiomediastinal contours are slightly enlarged but stable . The pleural surfaces are normal . The ET tube is in appropriate position approximately 5 .5 cm from the carina . The NG tube tip is not well visualized however the side ports appear to be within the gastric lumen .
    OUTPUT:
    
1 . ETT in appropriate position 5 .5 cm from the carina . 2 . NG tube is in a appropriate location . 3 . Slight improvement of pulmonary edema .