Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The NG tube ends in distended stomach . There is improved aeration of the left lung as compared to ___ with elevation of left hemidiaphragm . Mild pulmonary edema in the right lung is unchanged . Tracheostomy tube is midline . There is no pneumothorax . Cardiac size is indeterminate
    OUTPUT:
    
NG tube in distended stomach and improved aeration of left lung as compared to ___ .