Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bilateral vagal nerve stimulators are seen . There are relatively low lung volumes . No definite focal consolidation is seen . There is no pleural effusion or pneumothorax . Cardiac and mediastinal silhouettes are unremarkable . Anchor screws are noted overlying the right humeral head .
    OUTPUT:
    
No acute cardiopulmonary process .