IMRT is a seducing treatment option in patients with Hodgkin lymphoma mediastinal masses due to the complex form of the tumour masses and their proximity to organs at risk such as the heart and the coronary arteries. This treatment delivery technique remains risky owing to respiratory movements and heart beats. The concomitant use of IMRT and respiratory gating is enticing, but a number of theoretical and practical hurdles remain to be resolved before it can be used in clinical daily practice.
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