Radiotherapy

Radiotherapy, also referred to as radiation therapy, is a highly effective form of cancer treatment that uses high-energy radiation to eliminate cancerous cells. Radiation therapy is commonly utilized for treating a wide range of cancers, including those affecting the brain, breast, lung, and prostate. It is often employed in conjunction with other treatment modalities, such as surgery, chemotherapy, and immunotherapy, to increase the chances of successful outcomes.

History of Radiotherapy

The history of radiotherapy can be traced back to the late 19th century, with the discovery of X-rays by Wilhelm Röntgen in 1895. Further development of X-ray technology led to the first intentional use of radiation for medical purposes, which was conducted by Marie Curie.

Over the years, radiotherapy has undergone significant advancements, including the development of new radiation sources, such as cobalt-60 and linear accelerators, which provide more precise and targeted radiation therapy. The introduction of advanced imaging techniques, such as computed tomography (CT) and magnetic resonance imaging (MRI), has also greatly enhanced the precision of radiotherapy, allowing for the delivery of radiation with greater accuracy and reduced damage to surrounding healthy tissues.

Types of Radiotherapy

There are two main types of radiotherapy: external beam radiotherapy and internal radiotherapy.

External Beam Radiotherapy

External beam radiotherapy, also known as external beam radiation therapy (EBRT), is the most common type of radiotherapy. It involves delivering high-energy radiation beams from a machine outside the body, targeting cancerous tissues while minimizing damage to surrounding healthy cells.

Internal Radiotherapy

Internal radiotherapy, also known as brachytherapy, involves the placement of radioactive materials within or near the cancerous tissue. This method is commonly used for treating cancers located in specific areas, such as the prostate, cervix, or eye.