radiaatiota
Radiaatiota is a medical treatment that uses ionizing radiation to damage the DNA of cells, primarily to control or kill cancer cells. It can be used with curative, palliative, or preventive aims and is commonly part of multimodal cancer care alongside surgery and chemotherapy. The term encompasses several delivery methods, including external beam radiotherapy, brachytherapy, and systemic radiopharmaceuticals.
External beam radiotherapy delivers high-energy photons or particles from outside the body, typically via a linear
Brachytherapy places radioactive sources inside or next to the tumor, delivering high doses over a short distance,
Treatment planning uses imaging and computer dosimetry to define the target volume and organs at risk. Doses
Common indications include cancers of the breast, prostate, lung, and head and neck, as well as palliative
Safety measures include shielding, immobilization, image guidance, and regular quality assurance of equipment. Acute side effects
Advances such as intensity-modulated radiotherapy (IMRT), image-guided radiotherapy (IGRT), stereotactic body radiotherapy (SBRT), and particle therapy