MRGRT METROLOGY

Radiotherapy is one of the most important anti-cancer treatments and is used to treat around half of all patients in Europe. In radiotherapy, beams of ionising radiation are used to target and kill cancerous cells with a high radiation dose. The more precise this can be done, the higher the survival rates and lower the undesired site-effects... Precision is limited if accurate and up-to-date imaging of the targeted tumor is lacking. Combining real-time Magnetic Resonance (MR) imaging with radiotherapy (Magnetic resonance guided radiotherapy - MRgRT), provides more detailed images and anatomical information of a patient during treatment than conventional techniques. The simultaneous use of MR images and irradiation allows for more precise dose delivery and continuous optimisation of the dose distribution. Even organ or tumour motion, caused by internal movements of the patient (e.g. breathing, swallowing), during treatment can potentially be corrected for, increasing the accuracy of..