Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal the and lateral views of the chest . Compared to prior , there are lower inspiratory volumes . The lungs are clear of consolidation , effusion , or pulmonary vascular congestion . Left chest wall dual lead pacing device seen with leads in unchanged position . The cardiomediastinal silhouette is within normal limits . Old healed left posterior rib fractures are again seen . Posterior lumbar spinal fixation hardware is identified .
    OUTPUT:
    
No acute cardiopulmonary process .