Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison to the prior study , there is little overall change . Slight indistinctness at the left heart border is due to atelectasis and a fat pad as seen on the CT from earlier today . There are no opacities concerning for pneumonia . No pleural effusion . No pneumothorax . No congestive heart failure .
    OUTPUT:
    
No evidence of acute cardiopulmonary process .