Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is top normal . The hilar and mediastinal contours are within normal limits . Multiple sternal wires and mediastinal clips denote prior CABG . Central pulmonary vessels are engorged ; however , there is no overt edema . There is no pneumothorax , focal consolidation , or pleural effusion . Bibasilar atelectasis is present .
    OUTPUT:
    
No acute intrathoracic process .