Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A portable supine frontal chest radiograph again demonstrates the endotracheal tube and nasogastric tube in appropriate position . There is interval improvement in pulmonary edema and bilateral opacities . No new consolidation , pleural effusion , or large pneumothorax is identified , although the left lung apex can not be evaluated .
    OUTPUT:
    
Improved bilateral opacities and edema .