Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An endotracheal tube terminates 3 .9 cm above the carina . The left IJ central venous catheter terminates at the origin of the SVC . The right central venous catheter terminates near the cavoatrial junction . Mild pulmonary edema has improved . Lung volumes remain no and bibasilar opacities likely reflective of atelectasis persist . A smaller pleural effusion is stable . Heart size top - normal unchanged . No pneumothorax
    OUTPUT:
    
Mild pulmonary edema , improved .