Once you enter the front door of the hospital (by the circle drive) turn right and go through the glass doors. You will then turn Left and then another sharp Left to the elevator. You will take the elevator to the basement and exit to your left. The check in desk for CT will be on the right hand side.
If you are coming from Admitting, you will exit to the Left and then take another Left turn, passed the Meditation room/Chapel (room 1301). Proceed down the hallway until you come to the elevators. Take the elevators to the basement and exit to the Right. Take the first right and then a left and you will see the check in desk for CT on the right hand side.