Biomechanical properties of the calcaneal tendon in vivo assessed by transient shear wave elastography

Aubry, S.; Risson, J.-R.; Kastler, Adrian; Barbier-Brion, B.; Siliman, Gaye; Runge, M.; Kastler, B.

doi:10.1007/s00256-013-1649-9

Cited by 124 publications

(156 citation statements)

References 34 publications

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“…This result is in accordance with several previous studies who have found no correlation of shear modulus with physiological parameters (Aubry et al, 2013;Gennisson et al, 2005;Debernard et al, 2011), altough correlations were observed between BMI and trapezius muscle stiffness (Kuo et al, 2013) or with biceps brachii and biceps femoris muscles stiffness (Berko et al, 2013). However, muscle shear modulus depends on a large number of parameters, the study of a small specific and heterogeneous sample does not suffice to evaluate correlations; a large scale study have to be considered.…”

Section: Discussionsupporting

confidence: 77%

Reliable Protocol for Shear Wave Elastography of Lower Limb Muscles at Rest and During Passive Stretching

Dubois¹,

Kheireddine²,

Vergari³

et al. 2015

Ultrasound in Medicine & Biology

113

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Accepted Manuscript. Ultrasound in Medicine and Biologyy. The original publication is available at www.sciencedirect.com. DOI: doi:10.1016/j.ultrasmedbio.2015.04.020.Development of shear wave elastography gave access to non-invasive muscle stiffness assessment in vivo. The aim of the present study was to define a measurement protocol to quantify the shear modulus of lower limb muscles in order to be used in clinical routine. Four positions were defined to evaluate shear modulus, parallel to the fibers, in the anterior and posterior aspect of the lower limb, at rest and during passive stretching, of 10 healthy subjects. Reliability was first evaluated on 2 muscles by 3 operators, measurements were repeated 6 times. Then, reliability comparison of different muscle was evaluated on 11 muscles by 2 operators, measurements repeated 3 times. Reproducibility of shear modulus was 0.48 kPa and repeatability was 0.41 kPa, with all muscles pooled. The position did not significantly influence the reliability. SWE appeared as an appropriate and reliable tool to evaluate shear modulus of lower limb muscles with the proposed protocol.

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Section: Discussionsupporting

confidence: 77%

Reliable Protocol for Shear Wave Elastography of Lower Limb Muscles at Rest and During Passive Stretching

Dubois¹,

Kheireddine²,

Vergari³

et al. 2015

Ultrasound in Medicine & Biology

113

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“…In an echo-time study on 80 healthy individuals, Aubry and collaborators (40) confirmed that Achilles tendon stiffness increases with stretching and that c s values are higher when measured parallel (along the long axis) to the tendon fibers, as opposed to perpendicular (along the short axis), as a result of tendon anisotropy. To summarize, shear waves propagate faster in stiffer and contracted tissues and along the long axis of the tendon.…”

Section: Figure 1 (A)mentioning

confidence: 90%

Shear-Wave Elastography: Basic Physics and Musculoskeletal Applications

et al. 2017

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In the past 2 decades, sonoelastography has been progressively used as a tool to help evaluate soft-tissue elasticity and add to information obtained with conventional gray-scale and Doppler ultrasonographic techniques. Recently introduced on clinical scanners, shearwave elastography (SWE) is considered to be more objective, quantitative, and reproducible than compression sonoelastography with increasing applications to the musculoskeletal system. SWE uses an acoustic radiation force pulse sequence to generate shear waves, which propagate perpendicular to the ultrasound beam, causing transient displacements. The distribution of shear-wave velocities at each pixel is directly related to the shear modulus, an absolute measure of the tissue's elastic properties. Shear-wave images are automatically coregistered with standard B-mode images to provide quantitative color elastograms with anatomic specificity. Shear waves propagate faster through stiffer contracted tissue, as well as along the long axis of tendon and muscle. SWE has a promising role in determining the severity of disease and treatment followup of various musculoskeletal tissues including tendons, muscles, nerves, and ligaments. This article describes the basic ultrasound physics of SWE and its applications in the evaluation of various traumatic and pathologic conditions of the musculoskeletal system.

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“…By estimating the shear wave time of flight, shear wave velocities of a15 m/s and a5 m/s were measured parallel and perpendicular to the fiber orientation respectively. Given these values and the frequency range used for the SSI technique (300 -800 Hz), the shear wave wavelengths are greater than the mean tendon thickness (a 4 mm) [3]. Thus, shear waves may be guided along and across the tendon as Lamb waves as it has already been observed in cornea [4] and arteries [5].…”

Section: Introductionmentioning

confidence: 94%

“…In [2] Young's modulus of 134 kPa and 35 kPa were obtained parallel and perpendicular to the fiber orientation respectively. Recently, Aubry et al [3] evidenced anisotropy by applying the Supersonic Shear Imaging (SSI) technique in vivo to human Achilles tendons. By estimating the shear wave time of flight, shear wave velocities of a15 m/s and a5 m/s were measured parallel and perpendicular to the fiber orientation respectively.…”

Section: Introductionmentioning

confidence: 98%

See 1 more Smart Citation

In vivo achilles tendon elasticity assessment using supersonic shear imaging: A feasibility study

Brum

Bernal

Fink

et al. 2013

2013 IEEE International Ultrasonics Symposium (IUS)

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In this study shear wave dispersion was measured in vivo in four Achilles tendons by applying the Supersonic Shear Imaging technique and the concept of Shear Wave Spectroscopy parallel and perpendicular to the tendon fiber orientation. In tissues shear wave dispersion is related to two main physical causes: the geometry of the investigated medium which can lead to guided waves and/or the viscosity of the medium (if Voigt model is assumed). By modeling the Achilles tendon as a transverse isotropic plate it was possible to estimate the tendon elastic properties described by the five independent elastic constants (C 11 , C 33 , C 13 , C 55 and C 66 ) of the Christoffel's tensor. We show that parallel to fibers the geometrical effect leading to guided wave propagation is prominent, while perpendicularly to fibers viscosity must be also taken into account to fully describe the experimental data. The obtained results agree with those reported in the literature. In this study we have demonstrated that the use of a dispersion model must be taken into account in order to properly estimate the tendon viscoelastic properties.

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Biomechanical properties of the calcaneal tendon in vivo assessed by transient shear wave elastography

Abstract: SWE allows the elastic properties of the calcaneal tendon to be evaluated quantitatively in vivo, but interobserver reproducibility is questionable. It confirms the tendinous elastographic anisotropy and stiffness augmentation of stretched tendon.

Cited by 124 publications

References 34 publications

Reliable Protocol for Shear Wave Elastography of Lower Limb Muscles at Rest and During Passive Stretching

Reliable Protocol for Shear Wave Elastography of Lower Limb Muscles at Rest and During Passive Stretching

Shear-Wave Elastography: Basic Physics and Musculoskeletal Applications

In vivo achilles tendon elasticity assessment using supersonic shear imaging: A feasibility study

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