Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate low lung volumes . There is no pleural effusion , focal consolidation or pneumothorax . Hilar and mediastinal silhouettes are unchanged . Mild - to - moderate cardiomegaly is again noted . There is no pulmonary edema . Multiple surgical clips project over hilar and mediastinal silhouette . Sternotomy wires are in place . Remote right - sided rib fractures are visualized .
    OUTPUT:
    
No evidence of acute cardiopulmonary process .