Measuring anisotropic muscle stiffness properties using elastography
Measuring anisotropic muscle stiffness properties using elastography
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DOI：
10.1002/nbm.2964
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发表时间：
2013-11-01
影响因子：
2.9
通讯作者：
Bilston, L. E.
中科院分区：
文献类型：
--
作者：
Green, M. A.;Geng, G.;Bilston, L. E.
骨骼肌各向异性力学性能的生理和病理变化在很大程度上仍然是未知的，只有少数研究量化体内变化。本研究使用非侵入性MR弹性成像（MRE）技术，结合扩散张量成像（DTI），测量剪切模量各向异性在人类小腿骨骼肌。在10名健康受试者的内侧腓肠肌，比目鱼肌和胫骨前肌的剪切模量测量平行和垂直于纤维方向。结果显示，腓肠肌内侧肌（=0.86 +/- 0.15 kPa;（垂直）=0.66 +/- 0.19 kPa，P
Physiological and pathological changes to the anisotropic mechanical properties of skeletal muscle are still largely unknown, with only a few studies quantifying changes in vivo. 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 (=0.86 +/- 0.15 kPa; (perpendicular to)=0.66 +/- 0.19 kPa, P