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Why brain radiation therapy should take account of the individual structural and functional connectivity: Toward an irradiation “à la carte”

Abstract : Although radiation therapy (RT) is a main treatment of brain tumors, delayed cerebral toxicity may lead to cognitive deteriorations with adverse effects on quality of life. Despite technological advances in RT, the concept of brain connectome has not yet been incorporated in the strategy of irradiation. Because white matter tracts represent the main limitation of neuroplasticity, tumor surgery is increasingly performed with awake cortical-subcortical mapping. Here, the purpose is to reinforce the link between cognitive neurosciences and neurooncology, which is critical for neurosurgeons but also for medical oncologists, especially brain radiation oncologists. The goal is to optimize RT planning by sparing individual critical neural networks. A redefinition of "organs at risk" should be proposed, beyond the few structures (such as brainstem, optic pathway, pituitary gland, hippocampi) which are classically preserved for brain radiation, by considering the structural and functional connectivity in order to evolve toward a RT "à la carte".
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https://hal.umontpellier.fr/hal-03359280
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Soumis le : jeudi 30 septembre 2021 - 09:39:57
Dernière modification le : jeudi 19 mai 2022 - 14:56:03

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Hugues Duffau. Why brain radiation therapy should take account of the individual structural and functional connectivity: Toward an irradiation “à la carte”. Critical Reviews in Oncology/Hematology, Elsevier, 2020, 154, pp.103073. ⟨10.1016/j.critrevonc.2020.103073⟩. ⟨hal-03359280⟩

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