Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . Low lung volumes are noted on all views . There is a right chest wall dual - lumen central venous catheter whose distal tip is in the proximal right atrium . There is no visualized pneumothorax . The cardiomediastinal silhouette is within normal limits . The lungs are clear . No acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary process .