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Article: Nondestructive ultrasound evaluation of microstructure-related material parameters of skeletal muscle: An in silico and in vitro study

TitleNondestructive ultrasound evaluation of microstructure-related material parameters of skeletal muscle: An in silico and in vitro study
Authors
Issue Date1-Mar-2023
PublisherElsevier
Citation
Journal of the Mechanical Behavior of Biomedical Materials, 2023, v. 142, p. 105807 How to Cite?
Abstract

Direct and nondestructive assessment of material properties of skeletal muscle in vivo shall advance our understanding of intact muscle mechanics and facilitate personalized interventions. However, this is challenged by intricate hierarchical microstructure of the skeletal muscle. We have previously regarded the skeletal muscle as a composite of myofibers and extracellular matrix (ECM), formulated shear wave propagation in the undeformed muscle using the acoustoelastic theory, and preliminarily demonstrated that ultrasound-based shear wave elastography (SWE) could estimate microstructure-related material parameters (MRMPs): myofiber stiffness μf, ECM stiffness μm, and myofiber volume ratio Vf. The proposed method warrants further validation but is hampered by the lack of ground truth values of MRMPs. In this study, we presented analytical and experimental validations of the proposed method using finite-element (FE) simulations and 3D-printed hydrogel phantoms, respectively. Three combinations of different physiologically relevant MRMPs were used in the FE simulations where shear wave propagations in the corresponding composite media were simulated. Two 3D-printed hydrogel phantoms with the MRMPs close to those of a real skeletal muscle (i.e., μf=2.02kPa, μm=52.42kPa, and Vf=0.675,0.832) for ultrasound imaging were fabricated by an alginate-based hydrogel printing protocol that we modified and optimized from the freeform reversible embedding of suspended hydrogels (FRESH) method in literature. Average percent errors of (μfm,Vf) estimates were found to be (2.7%,7.3%,2.4%) in silico and (3.0%,8.0%,9.9%) in vitro. This quantitative study corroborated the potential of our proposed theoretical model along with ultrasound SWE for uncovering microstructural characteristics of the skeletal muscle in an entirely nondestructive way


Persistent Identifierhttp://hdl.handle.net/10722/328322
ISSN
2023 Impact Factor: 3.3
2023 SCImago Journal Rankings: 0.748

 

DC FieldValueLanguage
dc.contributor.authorDong, JP-
dc.contributor.authorZhao, JW-
dc.contributor.authorLiu, XY-
dc.contributor.authorLee, WN-
dc.date.accessioned2023-06-28T04:42:12Z-
dc.date.available2023-06-28T04:42:12Z-
dc.date.issued2023-03-01-
dc.identifier.citationJournal of the Mechanical Behavior of Biomedical Materials, 2023, v. 142, p. 105807-
dc.identifier.issn1751-6161-
dc.identifier.urihttp://hdl.handle.net/10722/328322-
dc.description.abstract<p> <span>Direct and nondestructive assessment of material properties of skeletal muscle in vivo shall advance our understanding of intact muscle mechanics and facilitate personalized interventions. However, this is challenged by intricate hierarchical microstructure of the skeletal muscle. We have previously regarded the skeletal muscle as a composite of myofibers and extracellular matrix (ECM), formulated shear wave propagation in the undeformed muscle using the acoustoelastic theory, and preliminarily demonstrated that ultrasound-based shear wave elastography (SWE) could estimate microstructure-related material parameters (MRMPs): myofiber stiffness μ</span><sub>f</sub><span>, ECM stiffness μ</span><sub>m</sub><span>, and myofiber volume ratio V</span><sub>f</sub><span>. The proposed method warrants further validation but is hampered by the lack of ground truth values of MRMPs. In this study, we presented analytical and experimental validations of the proposed method using finite-element (FE) simulations and 3D-printed hydrogel phantoms, respectively. Three combinations of different physiologically relevant MRMPs were used in the FE simulations where shear wave propagations in the corresponding composite media were simulated. Two 3D-printed hydrogel phantoms with the MRMPs close to those of a real skeletal muscle (i.e., μ</span><sub>f</sub><span>=2.02kPa, μ</span><sub>m</sub><span>=52.42kPa, and V</span><sub>f</sub><span>=0.675,0.832) for ultrasound imaging were fabricated by an alginate-based hydrogel printing protocol that we modified and optimized from the freeform reversible embedding of suspended hydrogels (FRESH) method in literature. Average percent errors of (μ</span><sub>f</sub><span>,μ</span><sub>m</sub><span>,V</span><sub>f</sub><span>) estimates were found to be (2.7%,7.3%,2.4%) in silico and (3.0%,8.0%,9.9%) in vitro. This quantitative study corroborated the potential of our proposed theoretical model along with ultrasound SWE for uncovering microstructural characteristics of the skeletal muscle in an entirely nondestructive way</span> <br></p>-
dc.languageeng-
dc.publisherElsevier-
dc.relation.ispartofJournal of the Mechanical Behavior of Biomedical Materials-
dc.titleNondestructive ultrasound evaluation of microstructure-related material parameters of skeletal muscle: An in silico and in vitro study-
dc.typeArticle-
dc.identifier.doi10.1016/j.jmbbm.2023.105807-
dc.identifier.hkuros344725-
dc.identifier.volume142-
dc.identifier.spage105807-
dc.identifier.issnl1878-0180-

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