Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Relatively low lung volumes are again noted with crowding of the bronchovascular markings an bibasilar atelectasis . There is no confluent consolidation , effusion or edema . Left chest wall dual lead pacing device is again seen . The cardiomediastinal silhouette is stable . Median sternotomy wires and mediastinal clips are again noted . No acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary process .