[Radiotherapy of brain tumors. New techniques and treatment strategies for].

Through a variety of technical enhancements modern radiotherapy offers the possibility to apply a high dose to an exactly defined target volume while the surrounding normal tissue is optimally spared. This article gives a short overview of new methods and techniques for radiotherapy of patients with brain tumors. Developments in the fields of biological imaging, radiation treatment planning, patient positioning and monitoring during radiotherapy will be especially discussed.