Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post CABG with intact sternotomy wires . There is stable mild cardiomegaly . The aorta is tortuous and minimally calcified ; there is minimal linear atelectasis at the left lung base . There is no airspace consolidation or edema . There is no pneumothorax or pleural effusion .
    OUTPUT:
    
No acute process .