Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An endotracheal tube has been placed with the tip terminating in the lower trachea . A nasogastric tube is also in position with the tip extending below the diaphragm with the tip projecting over the gastric bubble in the left upper abdomen . There is an unrecognized helical metallic device projecting over the descending thoracic aorta . The patient is status post aortic valve replacement . Multiple mediastinal and right lateral hemithorax surgical clips are unchanged in appearance from the prior study . The inspiratory lung volumes are decreased compared to ___ . There is no significant change in the dilatation at the aorta . The mediastinal and hilar contours appear stable . The heart is top normal in size , which is accentuated by the patient 's low lung volumes . Within these limitations , the lungs appear clear with no significant focal consolidation , pleural effusion or pneumothorax . The visualized upper abdomen is unremarkable .
    OUTPUT:
    
Endotracheal and NG tubes in standard placements . Low lung volumes .