Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The ET tube , right IJ line , and NG tube are unchanged . There is improved aeration at the bases with only a small amount of blunting of the CP angles . There is mild pulmonary vascular redistribution . The heart size is mildly enlarged .
    OUTPUT:
    
Compared to the prior exam aeration in the lower lobes is better .