Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison to the earlier radiograph , there is slight interval improvement in moderate pulmonary edema but stable small bilateral pleural effusions , right greater than left . A new nasogastric tube enters the stomach , distal tip not visualized . ET tube and right IJ central venous catheter remain in optimal position .
    OUTPUT:
    
NG tube enters the stomach , distal tip not visualized . Slightly improved moderate pulmonary edema .