Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . There is chronic moderate elevation of the right hemidiaphragm , with adjacent compressive atelectasis . No focal consolidation . Median sternotomy wires , vessel markers , and mediastinal clips from CABG . Unchanged fragmentation of the superiormost sternotomy wiret . Heart size is top normal . Aorta is tortuous and calcified . Mild bilateral acromioclavicular arthropathy .
    OUTPUT:
    
No acute process . Chronic right hemidiaphragm elevation .