Radiotherapy use in cancer
Remarkable technological improvements over the past two decades make radiotherapy an essential element in cancer therapy.
Radiation therapy (or radiotherapy) uses radiation such as high-energy X-rays, gamma rays, electrons or charged particles — protons — to directly damage the DNA of cancer cells, thus preventing or slowing cellular replication.
The damage inflicted on malignant cells leads to tumour death, which may reduce tumour size or activity, and help alleviate symptoms caused by cancer.
Radiation therapy is a safe and effective