Radiation Therapy: Types and Side Effects
Radiation Therapy: Types and Side Effects What are the main categories of radiation therapy based on delivery method ? External beam radiation therapy (EBRT) and internal radiation therapy (brachytherapy · External Beam Radiation Therapy (EBRT): In this method, the radiation source is outside the patient's body. A machine, such as a linear accelerator, directs high-energy beams of radiation towards the cancerous tumor from various angles. EBRT is a local treatment, meaning it targets a specific area of the body where the cancer is located. For instance, if someone has lung cancer, the radiation will be directed at their chest. This is the most common type of radiation therapy used to treat many different kinds of cancer. Patients typically receive EBRT in outpatient sessions over several weeks. The treatments are usually painless and last only a few minutes, although the setup time might be longer....