What you can expect

If you undergo IGRT, your treatment team may choose one or more imaging types to precisely locate the tumor and sensitive organs. IGRT may involve a variety of 2-D, 3-D and 4-D imaging techniques to position your body and aim the radiation so that your treatment is carefully focused on the tumor in order to minimize harm to healthy cells and organs nearby.

During IGRT, imaging tests are done before, and sometimes during, each treatment session. Your radiation therapy team compares these images to ones taken previously to determine if your tumor has moved and adjust your body and your treatment to target your tumor more precisely.