Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Pulmonary edema has improved and is now mild . Small bilateral pleural effusions persist with adjacent bibasilar atelectasis . Right pleural catheter appears similarly positioned . No pneumothorax is detected . Heart size is mildly enlarged . The aorta is tortuous and calcified .
    OUTPUT:
    
Decreased pulmonary edema .