Repositionnement par le système ExacTrac® pour l'irradiation sans cadre invasif de métastases cérébrales en conditions stéréotaxiques : étude descriptive de cinq centres français

The practices of the different centres concerning the positioning protocols were rather homogeneous, in agreement with the literature data on ExacTrac® system's accuracy, as well as proposed fractionations. The systematic medical validation at the treatment station may, however, be questioned because of the waiting time between the doctor's call and validation itself and because of its usefulness; indeed, corrections by the radiation oncologist are very rare and in some centres, non-existent.