Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and clear . Cardiac size is top normal . Cardiomediastinal and hilar contours are unremarkable . There is no pleural effusion or pneumothorax . Patient is status post cardiac surgery . Sternotomy wires are intact . Mediastinal clips are again identified . An ICD generator is seen within the left thorax with three leads in unchanged position compared with prior exam .
    OUTPUT:
    
No evidence of acute cardiopulmonary process .