Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy , CABG , and aortic and mitral valve replacement . Heart size is normal . Mediastinal and hilar contours are unremarkable . Atherosclerotic calcifications are seen throughout the aorta . The pulmonary vascularity is normal . Lungs are clear . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary process .