Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A new endotracheal tube terminates 3 .5 cm above the carina . The lung volumes have increased and parenchymal opacities have improved since 2 hours prior . The size of the pulmonary arteries has decreased . Mediastinal widening and mild cardiomegaly is stable . Bilateral lower lobe atelectasis has improved .
    OUTPUT:
    
Interval placement of an endotracheal tube . Improved lung expansion , decreased airspace opacities and decreased size of the pulmonary arteries .