Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Patient is status post median sternotomy and CABG . The superior most three sternal wires are fractured . The cardiac silhouette is top normal to mildly enlarged . The aorta is calcified . There are relatively low lung volumes with mild bibasilar atelectasis seen . There is no definite focal consolidation . No pleural effusion or pneumothorax . No overt pulmonary edema is seen .
    OUTPUT:
    
1 . No findings to suggest CHF . 2 . Low lung volumes without focal consolidation . 3 . Status post CABG with superior three most sternal wires fractured .