IMRT (Intensity Modulated Radiation Therapy)

IMRT (Intensity-Modulated Radiation Therapy) is a form of high-precision external radiotherapy in which the radiation dose delivered by each beam is not homogeneous but modulated three-dimensionally to administer a higher dose to the tumor while minimizing exposure of the surrounding healthy tissues to radiation. Since with IMRT the proportion of dose in the normal tissue compared to that in the tumor is very low, it is possible to deliver higher and more effective radiation doses to the tumor with fewer side effects than when using traditional radiotherapy techniques. IMRT reduces the treatment’s toxicity.

Currently, IMRT is used to treat tumors of the head and neck, prostate, breast, lung, and central nervous system. Additionally, it is also used for gynecological and hepatic tumors, lymphomas, and sarcomas.