Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Sternotomy wires and clips overlying the heart are compatible with prior CABG . Lung volumes are normal . There is no pleural effusion , consolidation , or pneumothorax . Moderate to severe cardiomegaly is mildly worse since ___ . Imaged osseous structures are intact . No free air below the right hemidiaphragm is seen .
    OUTPUT:
    
1 . No evidence of pneumothorax or pneumonia . 2 . Moderate to severe cardiomegaly is mildly worse since chest radiograph ___ .