Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right tunneled internal jugular central venous catheter ends in the mid SVC , not significantly changed allowing for differences in patient position . Lung volumes remain low . There is minimal left basilar atelectasis . No definite pleural effusions are seen . There is no pneumothorax . The heart size is normal . The mediastinal contours are normal .
    OUTPUT:
    
No acute cardiac or pulmonary process .