Craveiro, D. S.Loja, M.A.R.Vieira, Lina OliveiraVinyas, M.2019-10-012019-10-012019-02Craveiro DS, Loja MAR, Vieira L, Vinyas M. An optimization strategy for customized radiotherapy head immobilization masks. In: 2019 IEEE 6th Portuguese Meeting on Bioengineering (ENBENG), Instituto Superior de Engenharia de Lisboa (ISEL), Portugal, February 22-23, 2019.http://hdl.handle.net/10400.21/10529Project IPL/2016/SoftImob/ISEL. Support of FCT through IDMEC, LAETA, project UID/EMS/50022/2019.An effective head immobilization is an important requirement in radiotherapy treatment sessions, although it may also be thought in the future as a precious aid in brain medical imaging. Thus, the present work is focused on the stiffness optimization of a customized head immobilization mask, modeled upon the head reconstruction surface based on computerized tomography images. This paper proposes a strategy supported by a metaheuristic optimization technique and a metamodeling approach for the whole mask, illustrated at its most unfavorable region occurring in the gnathion region.engRadiotherapyBrain cancerBiomechanicsComputerised tomographyElasticityImage reconstructionMedical image processingCustomized head immobilization maskMetamodeling approachGnathion regionIPL/2016/SoftImob/ISELUID/EMS/50022/2019journal article10.1109/ENBENG.2019.8692572