Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: ET tube ends at the level of the clavicles . A left IJ central venous catheter terminates in the mid SVC . Diffuse bilateral airspace opacities have substantially improved since the study of 1 day prior . There is no pneumothorax . Mild cardiomegaly despite the projection is stable . There is no pleural effusion .
    OUTPUT:
    
Substantially improved pulmonary edema .