Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views the chest provided demonstrate midline sternotomy wires and mediastinal clips . Lungs are clear without focal consolidation , effusion or pneumothorax . No signs of congestion or edema . The cardiomediastinal silhouette is stable . Bony structures are intact .
    OUTPUT:
    
No acute intrathoracic process .