Investigating the impact of material properties on the simulated response of heel soft tissue in the context of pressure ulcers

Cornillon, Carla, Rohan, Pierre-Yves, Vergari, Claudio and Keenan, Bethany E. ORCID: https://orcid.org/0000-0001-7787-2892 2024. Investigating the impact of material properties on the simulated response of heel soft tissue in the context of pressure ulcers. Presented at: The 26th International Conference on Medical Image Computing and Computer Assisted Intervention, MICCAI 2023, Vancouver, Canada, 8-12 October 2023. Published in: Wittek, A., Kobielarz, M., Babu, A.R., Nash, M.P., Nielsen, P.M.F. and Miller, K. eds. Computational Biomechanics for Medicine. Lecture Notes in Bioengineering Springer, Cham, pp. 61-74. 10.1007/978-3-031-64632-4_6

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Abstract

Pressure Ulcer (PU) prevention remains a main public health issue. The physiopathology of this injury is not fully understood, and satisfactory therapy is currently not available. A better assessment of the internal behavior could allow to enhance the modeling of the transmission of loads into the different structures composing the heel. Computational modeling has shown promise in developing a better understanding of the biomechanical response of soft tissue in areas of high risk for PU such as the heel. An MRI-derived patient-specific FE model was developed to investigate heel soft tissue response and the impact of material properties on the tissue displacement and strain. Biplanar radiographs, ultrasound acquisitions, and pressure measurements were collected to inform the development of the model and verify its results. The FE simulations demonstrated variability in compressive strain values and localization in the tissue which informs the conclusions drawn from such models. Further work must be undertaken in characterizing these tissues in the use of such models such that their performance can be beneficial in a clinical setting.

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Publication
Status:	Published
Schools:	Engineering
Publisher:	Springer, Cham
ISBN:	9783031646317
Last Modified:	09 Sep 2024 09:57
URI:	https://orca.cardiff.ac.uk/id/eprint/171764

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