Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Post CABG changes with intact median sternotomy wires and mediastinal clips . Cardiomediastinal silhouette remains top normal but stable . The lungs are clear with no evidence of consolidation , effusion , or pneumothorax . There is no overt pulmonary edema . Osseous structures are grossly normal .
    OUTPUT:
    
No acute cardiopulmonary process .