Simulations of the consequences of tongue surgery on tongue mobility: implications for speech production in post-surgery conditions

Details Simulations of the consequences of tongue surgery on tongue mobility: implications for speech production in post-surgery conditions Simulations of the consequences of tongue surgery on tongue mobility: implications for speech production in post-surgery conditions

2007-10-15

arxiv.org/abs/0710.2747v1

International Journal of Medical Robotics and Computer Assisted Surgery 3, 3 (2007) 252-261

Physics

Medical Physics

Scientific paper

10.1002/rcs.142

This paper presents simulations of the impact of tongue surgery on tongue movements and on speech articulation. For this, a 3D biomechanical Finite Element (FE) model of the tongue is used. Muscles are represented within the FE structure by specific subsets of elements. The tongue model is inserted in the upper airways including jaw, palate and pharyngeal walls. Two examples of tongue surgery, which are quite common in the treatment of cancers of the oral cavity are modelled: hemiglossectomy and large resection of the mouth floor. Three kinds of reconstruction are also modelled, assuming flaps with a low, medium or high stiffnesses. The impact of the surgery without any reconstruction and with the three different reconstructions is quantitatively measured and compared during simulated speech production sequences. More precisely, differences in global 3D tongue shape and in velocity patterns during tongue displacements are evaluated.

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