Radiation therapy can harm normal tissue, so it’s carefully planned and precisely delivered. This helps ensure the radiation kills as many cancer cells as possible while doing as little injury as possible to other parts of your body.
Radiation therapy is planned specifically for your breast cancer and the shape of your body. This is why sessions can't be split between different treatment centers.
Your treatment plan is based on:
Your radiation oncologist oversees the radiation planning session.
You will lie on a special table while your radiation oncologist decides the proper dose of radiation and where to give the radiation. He or she will use a CT scan to guide the radiation planning.
During the planning session, your radiation oncologist will put small marks (about the size of a pinhead) on your skin.
These marks ensure you are correctly positioned for each treatment. They may be ink spots, or they may be permanent tattoos. If they are ink spots, don't wash them off until you finish all of your radiation therapy.
You may be asked to hold your breath during the planning session. This is one way to minimize radiation exposure to the heart.
Your radiation oncologist leads a team of technicians and nurses. The team will work with you at each radiation therapy session.
During each session, you will lie on a special table.
You may be asked to hold your breath while the radiation is given. This is one way to minimize radiation exposure to the heart.
If lymph nodes were removed during surgery and contained cancer, often the area around the lymph nodes is also treated with radiation.
Each session lasts about 10-20 minutes. Most of this time is spent positioning your body to ensure the treatment is given exactly as planned.
With any standard radiation therapy (whole-breast radiation therapy, accelerated, hypofractionated whole-breast irradiation, partial breast irradiation or a boost) you will not be radioactive when you leave the radiation treatment center. You will not pose any radiation risk to your family, including your pets.
Treatment is usually given once a day, 5 days a week, for 3-6 weeks.
The schedule of radiation sessions is designed to treat your breast cancer and varies from person to person.
Many women now get a shortened course (5 days a week, for 3-4 weeks) of radiation therapy . This is called accelerated, hypofractionated whole-breast irradiation.
It’s like standard radiation therapy except it uses a slightly higher dose of radiation per session (hypofractionation). This reduces the number of treatment sessions, making the course shorter (accelerated therapy).
Accelerated, hypofractionated whole-breast irradiation is as effective as standard radiation therapy for many women with early breast cancer .
After radiation therapy to the whole breast, you may have more radiation (called a boost) to the part of the breast that had the tumor.
This boost increases the amount of radiation given to the area at highest risk for breast cancer recurrence.
Your boost radiation session is similar to a regular session.
Radiation therapy often delivers radiation to the whole breast. Partial breast irradiation delivers radiation only to the area around the tumor bed (the space where the tumor was removed during lumpectomy).
It’s typically done in a shortened course over only 5-10 days. This reduces the number of treatment sessions (accelerated therapy). It can also be done over 3-4 weeks, similar to accelerated whole breast radiation therapy.
Partial breast irradiation is an appropriate treatment for select people with early-stage breast cancer.
You may want to discuss with your radiation oncologist the pros and cons of partial breast irradiation compared to whole breast radiation therapy for you.
Methods of partial breast irradiation include:
Things to remember
Adapted from National Cancer Institute materials .
If you don't live near the radiation treatment center, it can be hard to get to and from therapy sessions.
Sometimes, there are programs that help with local or long-distance transportation and lodging.
There are also programs to help you with child care and elder care costs.
Learn more about transportation, lodging, child care and elder care assistance programs.
SUSAN G. KOMEN® SUPPORT RESOURCES
Breast Cancer 101
Facts for Life: Radiation Therapy for Early Breast Cancer
1-877 GO KOMEN(1-877-465-6636)