Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left PICC is in place with the tip in the proximal right atrium . There is otherwise no short - term interval change compared to study from ___ hours earlier with persistent low lung volumes and bibasilar right greater than left atelectasis .
    OUTPUT:
    
Left PICC tip terminates in the superior aspect of the right atrium . If placement of the tip in the lower SVC is desired , further withdrawal of the catheter by 2 - 3 cm is necessary . A wet read entered into the system by Dr . ___ on ___ 8 :09 PM .