Non-invasive assessment of sciatic nerve stiffness during human ankle motion using ultrasound shear wave elastography

Ricardo J. Andrade; Antoine Nordez; François Hug; Filiz Ates; Michel W. Coppieters; Pedro Pezarat-Correia; Sandro R. Freitas

doi:10.1016/j.jbiomech.2015.12.017

Non-invasive assessment of sciatic nerve stiffness during human ankle motion using ultrasound shear wave elastography

Ricardo J. Andrade, Antoine Nordez^*, François Hug, Filiz Ates, Michel W. Coppieters, Pedro Pezarat-Correia, Sandro R. Freitas

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

49 Citations (Scopus)

Abstract

Peripheral nerves are exposed to mechanical stress during movement. However the in vivo mechanical properties of nerves remain largely unexplored. The primary aim of this study was to characterize the effect of passive dorsiflexion on sciatic nerve shear wave velocity (an index of stiffness) when the knee was in 90° flexion (knee 90°) or extended (knee 180°). The secondary aim was to determine the effect of five repeated dorsiflexions on the nerve shear wave velocity. Nine healthy participants were tested. The repeatability of sciatic nerve shear wave velocity was good for both knee 90° and knee 180° (ICCs≥0.92, CVs≤8.1%). The shear wave velocity of the sciatic nerve significantly increased (p

Original language	English
Pages (from-to)	326-331
Number of pages	6
Journal	Journal of Biomechanics
Volume	49
Issue number	3
DOIs	https://doi.org/10.1016/j.jbiomech.2015.12.017
Publication status	Published - 2016 Feb 8
Externally published	Yes

Keywords

Noninvasive mechanics
Peripheral nerves
Sciatic nerve
Shear wave velocity
Supersonic shear imaging

ASJC Scopus subject areas

Orthopedics and Sports Medicine
Rehabilitation
Biophysics
Biomedical Engineering

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10.1016/j.jbiomech.2015.12.017

Cite this

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abstract = "Peripheral nerves are exposed to mechanical stress during movement. However the in vivo mechanical properties of nerves remain largely unexplored. The primary aim of this study was to characterize the effect of passive dorsiflexion on sciatic nerve shear wave velocity (an index of stiffness) when the knee was in 90° flexion (knee 90°) or extended (knee 180°). The secondary aim was to determine the effect of five repeated dorsiflexions on the nerve shear wave velocity. Nine healthy participants were tested. The repeatability of sciatic nerve shear wave velocity was good for both knee 90° and knee 180° (ICCs≥0.92, CVs≤8.1%). The shear wave velocity of the sciatic nerve significantly increased (p",

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AU - Andrade, Ricardo J.

AU - Nordez, Antoine

AU - Hug, François

AU - Ates, Filiz

AU - Coppieters, Michel W.

AU - Pezarat-Correia, Pedro

AU - Freitas, Sandro R.

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Non-invasive assessment of sciatic nerve stiffness during human ankle motion using ultrasound shear wave elastography

Abstract

Keywords

ASJC Scopus subject areas

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