Using conformal techniques and IMRT in radiotherapy allows dose increase in the target volume and sparing of he althy tissues. In comparison with conventional techniques it requires more accuracy in the target volume delineation.
It is important to use all relevant diagnostic methods to reduce the risk of relapse. The basic method is CT examination which allows the dose distribution to be calculated.
New imaging dimensions are associated with PET (positron emission tomography), which supplements the morphological image (CT or MRI) with a functional view.