Radiation therapy is a very common type of treatment for many types of cancer. Radiation therapy uses high-energy X-rays, gamma rays, electron beams, or protons to kill or damage abnormal cancer cells and shrink cancer tumors. Radiation therapy is sometimes called radiotherapy, irradiation or X-ray therapy. Radiation therapy has been used since the early 1900s to treat cancer. In some cases, it’s is used alone to kill cancer cells. However, radiation therapy is most commonly used along with surgery and/or chemotherapy.
The decision to include radiation therapy in your treatment plan was made based on many unique factors, including the size and type of your tumor, genetic, health history, and personal health goals.
There are several forms of radiation that can be administered non-invasively from outside of the body, similar to an X-ray, and other forms that are administered internally through implants.
During radiation therapy, cancer doctors who specialize in this form of treatment — called radiation oncologists — will plan and oversee your radiation therapy treatment. During each radiation therapy session, your radiation oncologist or a radiation therapist will expose the cancer cells to high-energy radiation using specialized external equipment or by implanting radioactive material at the site of the cancer. The exposure causes the DNA in cancer cells to fracture. Once the DNA is fractured, the cells have a difficult time growing. The cells will either continue to grow very slowly or they will stop growing completely and die off.
Surrounding healthy cells will be exposed to some radiation, too, but most of them will recover and continue to function properly whereas cancer cells will not. Rocky Mountain Cancer Centers uses the most advanced and latest radiation technology that helps minimize the exposure or effect on healthy cells. Every piece of technology used at Rocky Mountain Cancer Centers is accredited and checked daily to ensure the highest level of pinpoint accuracy.
There are two main types of radiation therapy: external beam radiation therapy and internal radiation therapy.
External beam radiation therapy is delivered via a machine from outside the body using a beam directed at the site of the cancer. The equipment does not make physical contact with the body and it can be moved around the body to deliver radiation beams from different angles. Treatment is typically administered five days a week for a period of one to 10 weeks.
External beam radiation therapy technology used at Rocky Mountain Cancer Centers includes:
Internal radiation therapy involves implanting radioactive material in the body near or inside the tumor. Different types of brachytherapy implants include pellets, seeds, ribbons, wires, needles, capsules, balloons, or tubes. The implant is placed using catheters, small tubes inserted through veins or arteries without surgery. Depending on the type of material used, it may be left in for a few minutes, a few days, or permanently.
At Rocky Mountain Cancer Centers, we offer two forms of internal radiation therapy:
When you received your cancer diagnosis, you most likely were referred next to a cancer surgeon or a cancer specialist called a medical oncologist. At that point, a treatment plan including radiation therapy was developed was based on many factors, including:
Another factor that may affect your radiation therapy treatment plan is whether you have received radiation to that body part in the past. Each area of the body has a safe lifetime dose of radiation it can receive. The decision to use radiation for recurrence will depend on the location of your tumor, the type of cancer, and the amount of radiation previously used.
Radiation therapy may be recommended alone or it may be recommended before, during, or after other treatments, such as surgery, chemotherapy, or immunotherapy. Once you have been referred for treatment, either from within Rocky Mountain Cancer Centers or from a community provider, we usually can schedule you for your first appointment within two days.
Radiation therapy is a specialty that requires a high level of skill, precision, and experience. You also want to make sure your provider utilizes state-of-the-art technology and has strict protocols in place to ensure on an ongoing basis that all equipment is properly functioning and precisely calibrated daily so that the high-energy radiation is delivered with pinpoint accuracy.
At Rocky Mountain Cancer Centers, we have been delivering the highest quality of radiation therapy treatment to patients throughout Colorado for more than 20 years. All of our radiation oncologists are board-certified, which means that you will be treated by highly trained and experienced physicians — not doctors who have just completed their training or who are still in residency. In addition, our entire radiation therapy staff from dosimetrists and radiation technicians to nurses and financial counselors work only in radiation therapy and all hold certifications where available.
Other factors to consider include: