Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single portable frontal view of the chest was obtained . The patient is status post endotracheal tube placement with tip approximately 2 .5 cm above the carina . Enteric tube is subdiaphragmatic but the tip is excluded from the image . Lung volumes remain low . Increased bilateral opacities likely reflect pulmonary vascular crowding and mild edema . pulmonary edema has improved . Cardiomediastinal silhouette is stable . There is no large effusion or pneumothorax .
    OUTPUT:
    
1 . Status post endotracheal tube placement in appropriate position . 2 . Persistent low lung volumes . 3 . Better aeration of both lungs and decreased atelectasis and edema .