In this video we explain what to expect during an MRI scan and the process. Featuring true facts about how MRI scanners use magnetism to build up a picture of the inside of your body. This helps your doctor either make a diagnosis on what cancer stage you're at and decide what treatment you need or to find out if your treatment is working.

Find out more about this test and other tests to diagnose or treat cancer on the Cancer Research UK website:
http://www.cancerresearchuk.org/cance...