Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is been placement of a right internal jugular central line that terminates in the right atrium . Endotracheal tube , a nasogastric tube are unchanged and appropriately positioned . Compared to the prior study there is improved aeration and improvement in bilateral pulmonary opacities .
    OUTPUT:
    
1 . Right internal jugular central line in the right atrium which should be retracted for more optimal positioning in the SVC . 2 . Improved bilateral pulmonary opacities favoring pulmonary edema as the etiology .