Multimodal evaluation of hypoxia in brain metastases of lung cancer and interest of hypoxia image-guided radiotherapy by Corroyer-Dulmont, A, Valable, S, Fantin, J, Chatre, L, Toutain, J, Teulier, S, Bazille, C, Letissier, E, Levallet, J, Divoux, D, Ibazizène, M, Guillouet, S, Perrio, C, Barré, L, Serres, S, Sibson, N, Chapon, F, Levallet, G, Bernaudin, M