What is the full form of EBRT
EBRT: External Beam Radiation Therapy
EBRT stands for External Beam Radiation Therapy. It is the most common type of radiation therapy, used in the treatment of cancer. In this therapy, X-rays are delivered using a high-energy x-ray machine to a tumor to kill the cancer cells. Some advanced forms of external beam radiation therapy use other particles like electrons and protons to destroy cancer cells.
It is a painless procedure just like X-ray and CT scan, there is no sensation of being treated during this therapy. When it is used to treat cancer, it is known as curative radiotherapy. When it is used to control the symptoms of cancer, it is called palliative radiotherapy.
EBRT is a non-invasive procedure in which a targeted radiation beam is delivered from outside the body to a tumor. The radiation beam is shaped before it reaches the affected area so that it can be carefully directed at tumor without affecting the surrounding tissues.
How does it work?
It delivers a high-energy radiation beam to tumors using an X-ray machine (a linear accelerator). This beam can be delivered from multiple angles and can also be shaped to the contour of the tumor. It damages the DNA of the cancer cells. It damages the DNA directly or creates free radicals to damage DNA. Once, DNA is damaged, the cancer cells stop growing or start to die. The body breaks down the dead cancer cells to get rid of waste substances.
Types of External Beam Radiation Therapy
There are different types of external beam radiotherapies, depending on the type of cancer and where it is in your body. Some common types are as follows: