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Article

Viscoelastic Characterization of Parasagittal Bridging Veins and Implications for Traumatic Brain Injury: A Pilot Study

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Escola d’Enginyeria de Barcelona Est, Universitat Politècnica de Catalunya, Av. Eduard Maristany, 16, 08019 Barcelona, Spain
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Institut de Medicina Legal i Ciències Forenses de Catalunya, G.V. Corts Catalanes, 111, 08014 Barcelona, Spain
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Departament de Psiquiatria i de Medicina Legal, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193 Barcelona, Spain
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Instituto de Medicina Legal de Aragón, Irene Izárbez, 22005 Huesca, Spain
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Centro Zaragoza, Crtra. 232, km.273, 50690 Pedrola, Spain
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editor: Liang Luo
Bioengineering 2021, 8(10), 145; https://doi.org/10.3390/bioengineering8100145
Received: 19 August 2021 / Revised: 5 October 2021 / Accepted: 12 October 2021 / Published: 18 October 2021
Many previous studies on the mechanical properties of Parasagittal Bridging Veins (PSBVs) found that strain rate had a significant effect on some mechanical properties, but did not extensively study the viscoelastic effects, which are difficult to detect with uniaxial simple tensile tests. In this study, relaxation tests and tests under cyclic loading were performed, and it was found that PSBVs do indeed exhibit clear viscoelastic effects. In addition, a complete viscoelastic model for the PSBVs is proposed and data from relaxation, cyclic load and load-unload tests for triangular loads are used to find reference values that characterize the viscoelastic behavior of the PSBVs. Although such models have been proposed for other types of blood vessels, this is the first study that clearly demonstrates the existence of viscoelastic effects from an experimental point of view and also proposes a specific model to explain the data obtained. Finally, this study provides reference values for the usual viscoelastic properties, which would allow more accurate numerical simulation of PSBVs by means of computational models. View Full-Text
Keywords: bridging veins; TBI; tissue characterization; biomechanics; strain rate dependent materials; viscoelasticity bridging veins; TBI; tissue characterization; biomechanics; strain rate dependent materials; viscoelasticity
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MDPI and ACS Style

García-Vilana, S.; Sánchez-Molina, D.; Llumà, J.; Galtés, I.; Velázquez-Ameijide, J.; Rebollo-Soria, M.C.; Arregui-Dalmases, C. Viscoelastic Characterization of Parasagittal Bridging Veins and Implications for Traumatic Brain Injury: A Pilot Study. Bioengineering 2021, 8, 145. https://doi.org/10.3390/bioengineering8100145

AMA Style

García-Vilana S, Sánchez-Molina D, Llumà J, Galtés I, Velázquez-Ameijide J, Rebollo-Soria MC, Arregui-Dalmases C. Viscoelastic Characterization of Parasagittal Bridging Veins and Implications for Traumatic Brain Injury: A Pilot Study. Bioengineering. 2021; 8(10):145. https://doi.org/10.3390/bioengineering8100145

Chicago/Turabian Style

García-Vilana, Silvia, David Sánchez-Molina, Jordi Llumà, Ignasi Galtés, Juan Velázquez-Ameijide, M. C. Rebollo-Soria, and Carlos Arregui-Dalmases. 2021. "Viscoelastic Characterization of Parasagittal Bridging Veins and Implications for Traumatic Brain Injury: A Pilot Study" Bioengineering 8, no. 10: 145. https://doi.org/10.3390/bioengineering8100145

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