Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single AP view of the chest was reviewed . Since the recent prior study less than one hour prior , there has been introduction of an endotracheal tube with tip terminating 6 .4 cm above the carina . There has been no significant change in the remainder of the radiograph .
    OUTPUT:
    
Satisfactory placement of the ET tube with no other interval changes .