Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderately enlarged heart size is smaller than it was on ___ . Both lung volumes have improved . Bilateral pleural effusions , if any , are minimal and unchanged . Bilateral lower lung atelectasis are present but significantly improved since ___ . Mediastinal and hilar contours are normal . Patient is status post median sternotomy with intact sternal sutures . Mild - to - moderate atherosclerotic calcification is present in the aortic arch . Internal jugular line through left - sided approach terminates at lower SVC . No discrete lung opacities concerning for pneumonia .
    OUTPUT:
    
Since ___ , moderately enlarged heart , mild bilateral pleural effusions and lung aeration have improved