Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The endotracheal tube is 4 .5 cm above the carinal . Swan - Ganz catheter is present in the main pulmonary artery . Median sternotomy wires are intact . Other support devices are unchanged . Bilateral parenchymal opacities are unchanged .
    OUTPUT:
    
No change since the prior study .