Help- Advice - Information


Intensity-Modulated Radiation Therapy (IMRT)



Intensity-Modulated Radiation Therapy (IMRT) is a type of radiotherapy that allows the clinical oncologist to treat less healthy tissue. The linear accelerator moves the MLC's while the radiotherapy treatment is taking place, allowing the radiation dose to be modulated (conformed / controlled) very accurately around the tumour. IMRT also allows higher radiation doses to be given, to the patient, with fewer side effects caused.

This technique is normally of most benefit for patients who are having their pelvis (prostate or gynaecological cancers) or head and neck treated. IMRT is not suitable for all treatment areas, but we would recommend you ask during your initial consultation with the clinical oncologist whether it would be suitable for you.

The image on the right was produced the computer planning department and shows a cross section of a patient's head. The coloured lines show the planning radiographers, physicists and doctors where the radiation dose is going. For more information on the planning process click here .


Reviewed: March 2015