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Measuring anisotropic muscle stiffness properties using elastography
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| Zeitschriftentitel: | NMR in Biomedicine |
|---|---|
| Personen und Körperschaften: | , , , , , |
| In: | NMR in Biomedicine, 26, 2013, 11, S. 1387-1394 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Wiley
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| Schlagwörter: |
| author_facet |
Green, M. A. Geng, G. Qin, E. Sinkus, R. Gandevia, S. C. Bilston, L. E. Green, M. A. Geng, G. Qin, E. Sinkus, R. Gandevia, S. C. Bilston, L. E. |
|---|---|
| author |
Green, M. A. Geng, G. Qin, E. Sinkus, R. Gandevia, S. C. Bilston, L. E. |
| spellingShingle |
Green, M. A. Geng, G. Qin, E. Sinkus, R. Gandevia, S. C. Bilston, L. E. NMR in Biomedicine Measuring anisotropic muscle stiffness properties using elastography Spectroscopy Radiology, Nuclear Medicine and imaging Molecular Medicine |
| author_sort |
green, m. a. |
| spelling |
Green, M. A. Geng, G. Qin, E. Sinkus, R. Gandevia, S. C. Bilston, L. E. 0952-3480 1099-1492 Wiley Spectroscopy Radiology, Nuclear Medicine and imaging Molecular Medicine http://dx.doi.org/10.1002/nbm.2964 <jats:p>Physiological and pathological changes to the anisotropic mechanical properties of skeletal muscle are still largely unknown, with only a few studies quantifying changes <jats:italic>in vivo</jats:italic>. This study used the noninvasive MR elastography (MRE) technique, in combination with diffusion tensor imaging (DTI), to measure shear modulus anisotropy in the human skeletal muscle in the lower leg. Shear modulus measurements parallel and perpendicular to the fibre direction were made in 10 healthy subjects in the medial gastrocnemius, soleus and tibialis anterior muscles. The results showed significant differences in the medial gastrocnemius (<jats:italic>μ</jats:italic><jats:sub>‖</jats:sub> =0.86 ± 0.15 kPa; <jats:italic>μ</jats:italic><jats:sub>⊥</jats:sub> = 0.66 ± 0.19 kPa, <jats:italic>P</jats:italic> < 0.001), soleus (<jats:italic>μ</jats:italic><jats:sub>‖</jats:sub> = 0.83 ± 0.22 kPa; <jats:italic>μ</jats:italic><jats:sub>⊥</jats:sub> = 0.65 ± 0.13 kPa, <jats:italic>P</jats:italic> < 0.001) and the tibialis anterior (<jats:italic>μ</jats:italic><jats:sub>‖</jats:sub> = 0.78 ± 0.24 kPa; <jats:italic>μ</jats:italic><jats:sub>⊥</jats:sub> = 0.66 ± 0.16 kPa, <jats:italic>P</jats:italic> = 0.03) muscles, where the shear modulus measured in the direction parallel is greater than that measured in the direction perpendicular to the muscle fibres. No significant differences were measured across muscle groups. This study provides the first direct estimates of the anisotropic shear modulus in the triceps surae muscle group, and shows that the technique may be useful for the probing of mechanical anisotropy changes caused by disease, aging and injury. Copyright © 2013 John Wiley & Sons, Ltd.</jats:p> Measuring anisotropic muscle stiffness properties using elastography NMR in Biomedicine |
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| title |
Measuring anisotropic muscle stiffness properties using elastography |
| title_unstemmed |
Measuring anisotropic muscle stiffness properties using elastography |
| title_full |
Measuring anisotropic muscle stiffness properties using elastography |
| title_fullStr |
Measuring anisotropic muscle stiffness properties using elastography |
| title_full_unstemmed |
Measuring anisotropic muscle stiffness properties using elastography |
| title_short |
Measuring anisotropic muscle stiffness properties using elastography |
| title_sort |
measuring anisotropic muscle stiffness properties using elastography |
| topic |
Spectroscopy Radiology, Nuclear Medicine and imaging Molecular Medicine |
| url |
http://dx.doi.org/10.1002/nbm.2964 |
| publishDate |
2013 |
| physical |
1387-1394 |
| description |
<jats:p>Physiological and pathological changes to the anisotropic mechanical properties of skeletal muscle are still largely unknown, with only a few studies quantifying changes <jats:italic>in vivo</jats:italic>. This study used the noninvasive MR elastography (MRE) technique, in combination with diffusion tensor imaging (DTI), to measure shear modulus anisotropy in the human skeletal muscle in the lower leg. Shear modulus measurements parallel and perpendicular to the fibre direction were made in 10 healthy subjects in the medial gastrocnemius, soleus and tibialis anterior muscles. The results showed significant differences in the medial gastrocnemius (<jats:italic>μ</jats:italic><jats:sub>‖</jats:sub> =0.86 ± 0.15 kPa; <jats:italic>μ</jats:italic><jats:sub>⊥</jats:sub> = 0.66 ± 0.19 kPa, <jats:italic>P</jats:italic> < 0.001), soleus (<jats:italic>μ</jats:italic><jats:sub>‖</jats:sub> = 0.83 ± 0.22 kPa; <jats:italic>μ</jats:italic><jats:sub>⊥</jats:sub> = 0.65 ± 0.13 kPa, <jats:italic>P</jats:italic> < 0.001) and the tibialis anterior (<jats:italic>μ</jats:italic><jats:sub>‖</jats:sub> = 0.78 ± 0.24 kPa; <jats:italic>μ</jats:italic><jats:sub>⊥</jats:sub> = 0.66 ± 0.16 kPa, <jats:italic>P</jats:italic> = 0.03) muscles, where the shear modulus measured in the direction parallel is greater than that measured in the direction perpendicular to the muscle fibres. No significant differences were measured across muscle groups. This study provides the first direct estimates of the anisotropic shear modulus in the triceps surae muscle group, and shows that the technique may be useful for the probing of mechanical anisotropy changes caused by disease, aging and injury. Copyright © 2013 John Wiley & Sons, Ltd.</jats:p> |
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| author_facet | Green, M. A., Geng, G., Qin, E., Sinkus, R., Gandevia, S. C., Bilston, L. E., Green, M. A., Geng, G., Qin, E., Sinkus, R., Gandevia, S. C., Bilston, L. E. |
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| description | <jats:p>Physiological and pathological changes to the anisotropic mechanical properties of skeletal muscle are still largely unknown, with only a few studies quantifying changes <jats:italic>in vivo</jats:italic>. This study used the noninvasive MR elastography (MRE) technique, in combination with diffusion tensor imaging (DTI), to measure shear modulus anisotropy in the human skeletal muscle in the lower leg. Shear modulus measurements parallel and perpendicular to the fibre direction were made in 10 healthy subjects in the medial gastrocnemius, soleus and tibialis anterior muscles. The results showed significant differences in the medial gastrocnemius (<jats:italic>μ</jats:italic><jats:sub>‖</jats:sub> =0.86 ± 0.15 kPa; <jats:italic>μ</jats:italic><jats:sub>⊥</jats:sub> = 0.66 ± 0.19 kPa, <jats:italic>P</jats:italic> < 0.001), soleus (<jats:italic>μ</jats:italic><jats:sub>‖</jats:sub> = 0.83 ± 0.22 kPa; <jats:italic>μ</jats:italic><jats:sub>⊥</jats:sub> = 0.65 ± 0.13 kPa, <jats:italic>P</jats:italic> < 0.001) and the tibialis anterior (<jats:italic>μ</jats:italic><jats:sub>‖</jats:sub> = 0.78 ± 0.24 kPa; <jats:italic>μ</jats:italic><jats:sub>⊥</jats:sub> = 0.66 ± 0.16 kPa, <jats:italic>P</jats:italic> = 0.03) muscles, where the shear modulus measured in the direction parallel is greater than that measured in the direction perpendicular to the muscle fibres. No significant differences were measured across muscle groups. This study provides the first direct estimates of the anisotropic shear modulus in the triceps surae muscle group, and shows that the technique may be useful for the probing of mechanical anisotropy changes caused by disease, aging and injury. Copyright © 2013 John Wiley & Sons, Ltd.</jats:p> |
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| spelling | Green, M. A. Geng, G. Qin, E. Sinkus, R. Gandevia, S. C. Bilston, L. E. 0952-3480 1099-1492 Wiley Spectroscopy Radiology, Nuclear Medicine and imaging Molecular Medicine http://dx.doi.org/10.1002/nbm.2964 <jats:p>Physiological and pathological changes to the anisotropic mechanical properties of skeletal muscle are still largely unknown, with only a few studies quantifying changes <jats:italic>in vivo</jats:italic>. This study used the noninvasive MR elastography (MRE) technique, in combination with diffusion tensor imaging (DTI), to measure shear modulus anisotropy in the human skeletal muscle in the lower leg. Shear modulus measurements parallel and perpendicular to the fibre direction were made in 10 healthy subjects in the medial gastrocnemius, soleus and tibialis anterior muscles. The results showed significant differences in the medial gastrocnemius (<jats:italic>μ</jats:italic><jats:sub>‖</jats:sub> =0.86 ± 0.15 kPa; <jats:italic>μ</jats:italic><jats:sub>⊥</jats:sub> = 0.66 ± 0.19 kPa, <jats:italic>P</jats:italic> < 0.001), soleus (<jats:italic>μ</jats:italic><jats:sub>‖</jats:sub> = 0.83 ± 0.22 kPa; <jats:italic>μ</jats:italic><jats:sub>⊥</jats:sub> = 0.65 ± 0.13 kPa, <jats:italic>P</jats:italic> < 0.001) and the tibialis anterior (<jats:italic>μ</jats:italic><jats:sub>‖</jats:sub> = 0.78 ± 0.24 kPa; <jats:italic>μ</jats:italic><jats:sub>⊥</jats:sub> = 0.66 ± 0.16 kPa, <jats:italic>P</jats:italic> = 0.03) muscles, where the shear modulus measured in the direction parallel is greater than that measured in the direction perpendicular to the muscle fibres. No significant differences were measured across muscle groups. This study provides the first direct estimates of the anisotropic shear modulus in the triceps surae muscle group, and shows that the technique may be useful for the probing of mechanical anisotropy changes caused by disease, aging and injury. Copyright © 2013 John Wiley & Sons, Ltd.</jats:p> Measuring anisotropic muscle stiffness properties using elastography NMR in Biomedicine |
| spellingShingle | Green, M. A., Geng, G., Qin, E., Sinkus, R., Gandevia, S. C., Bilston, L. E., NMR in Biomedicine, Measuring anisotropic muscle stiffness properties using elastography, Spectroscopy, Radiology, Nuclear Medicine and imaging, Molecular Medicine |
| title | Measuring anisotropic muscle stiffness properties using elastography |
| title_full | Measuring anisotropic muscle stiffness properties using elastography |
| title_fullStr | Measuring anisotropic muscle stiffness properties using elastography |
| title_full_unstemmed | Measuring anisotropic muscle stiffness properties using elastography |
| title_short | Measuring anisotropic muscle stiffness properties using elastography |
| title_sort | measuring anisotropic muscle stiffness properties using elastography |
| title_unstemmed | Measuring anisotropic muscle stiffness properties using elastography |
| topic | Spectroscopy, Radiology, Nuclear Medicine and imaging, Molecular Medicine |
| url | http://dx.doi.org/10.1002/nbm.2964 |