Human: My doctor has told me to get a CAT scan. What is this procedure like? Assistant: 
The CAT scan is an imaging test that uses x-rays and computer technology to create images of your brain, spinal cord, and other internal organs. It takes about 20 minutes to complete and you will be asked to lie still during the procedure. You may feel some mild discomfort or hear a clicking sound as the x-ray beams are emitted. You will then be asked to wait for the images to be processed before being released from the hospital.