Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes remain low . Mild interstitial pulmonary edema is slightly decreased . Mild to moderate bilateral lower lung atelectasis is unchanged on the right and slightly progressed on the left . There are no definite pleural effusions . There is no pneumothorax . The width of the vascular pedicle has decreased . The heart size is not significantly changed .
    OUTPUT:
    
1 . Decreased width of the vascular pedicle and slightly decreased pulmonary edema . 2 . Mild to moderate bibasilar atelectasis , unchanged on the right and slightly progressed on the left .