Radiotherapy is the basic treatment modality in lung cancer across all its stages. There is a therapeutic benefit in settings up to 77 per cent, but the worldwide use is lower, in the Czech Republic about 25 percent.
The advanced radiotherapeutic techniques, such as IMRT (intensity modulated radiotherapy) and IGRT with monitoring of respiratory motion (image guided radiotherapy), enable to reduce a dose to the organs at risk (heart, contralateral lung), the risk of pneumonitis and they prolong the survival.