Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate multiple leads projecting over the left hemithorax . The heart is normal in size . The mediastinal and hilar contours are unremarkable . The lung volumes are low ; however , the lungs are clear without pneumothorax , vascular congestion , or pleural effusion .
    OUTPUT:
    
No evidence of acute cardiopulmonary process .