PET/CT case study: colon cancer

In 2001 an article showed that if you had colon cancer and were followed with PET scanning you had a 77% better chance of still being alive three years after diagnosis, compared to if followed by CT and blood tests. In Ontario at least 50 % of patients with recurrent colon cancer are not allowed to have a PET scan, and are only allowed to be followed by blood tests and CT and MR exams.