2009
DOI: 10.1016/j.jbiomech.2008.11.034
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Wave attenuation as a measure of muscle quality as measured by magnetic resonance elastography: Initial results

Abstract: Advances in imaging technologies such as magnetic resonance elastography (MRE) have allowed researchers to gain insights into muscle function in vivo. MRE has been used to examine healthy and diseased muscle by calculating shear modulus. However, additional information can be measured from visualizing a mechanical wave as it passes through a tissue. One such measurable quantity is wave attenuation. The purpose of this study was to determine if a simple measure of wave attenuation could be used to distinguish b… Show more

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Cited by 25 publications
(29 citation statements)
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“…In skeletal muscles, additional factors, such as muscular tension, isometric contraction, the condition of the extracellular matrix, shear stress and strain distribution, were demonstrated to influence sonographic and magnetic resonance elastographic signals [32,[36][37][38][39][40][41][42][43].…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…In skeletal muscles, additional factors, such as muscular tension, isometric contraction, the condition of the extracellular matrix, shear stress and strain distribution, were demonstrated to influence sonographic and magnetic resonance elastographic signals [32,[36][37][38][39][40][41][42][43].…”
Section: Discussionmentioning
confidence: 99%
“…This artifact area was excluded from color distribution analysis. myositis and myopathy in peripheral muscle structures of patients with hyperthyroidism [20,39,40,43]. In addition, the actual state of muscular contraction during the examination was found to influence shear modulus and viscosity, yielding different elastogram color distributions in both sonographic and MRI settings [20][21][22][23][35][36][37][38][39].…”
Section: Discussionmentioning
confidence: 99%
“…MRE has been successfully used to examine both healthy (3,4,25) and diseased muscles (8,26), because it allows for the calculation of shear moduli and the detection of myofascial taut -d). From the gradient echo MRE acquisition magnitude images (b), eight sets of postprocessed images were displayed, including the wrapped phase shift wave image (c) and the stiffness color map, in which red shows the highest stiffness (d).…”
Section: Discussionmentioning
confidence: 99%
“…MRE is now being used to examine several skeletal muscles in subjects who are both healthy and diseased, including the muscles involved in hyperthyroid myopathy, myositis, and MPS (1)(2)(3)(4)(5)(6)(7)(8)(9). Most previous skeletal muscle MRE studies, however, have been performed with 1.5 T magnetic resonance imaging (MRI) systems.…”
Section: Introductionmentioning
confidence: 99%
“…For example, shear wave attenuation coefficients of the vastus medialis for patients with hyperthyroid myopathy and myositis were found to be larger than those of their normal healthy counterparts. 75 It has also been reported that MR elastography displacement information could be used to examine the connectivity of adjacent tissues, 76 the slipperiness of tissue interfaces, 77 and the functional analysis of flexor muscle compartments. 78 One of the main limitations of MR elastography of the muscle is that the stiffness is still assessed with a manual technique, which could show subjective variation, but ongoing work in this domain may address this issue in the near future.…”
Section: Quantitative Mr Imaging Techniquesmentioning
confidence: 99%