Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy and CABG . An electronic device projects over the mid aspect of the sternum . Heart size is normal . Mediastinal and hilar contours are unchanged . Lungs are clear . Pulmonary vasculature is normal . No pleural effusion or pneumothorax is present . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary abnormality .