Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to chest radiograph from earlier the same day , insertion of a esophageal balloon , with the tip in the lower esophagus . Remaining support devices are in good position . Widespread interstitial and airspace opacities remain unchanged , severe pulmonary edema . No pneumothorax .
    OUTPUT:
    
No substantial change .