MR imaging of skeletal muscle signal alterations: Systematic approach to evaluation

2016 ◽  
Vol 85 (5) ◽  
pp. 922-935 ◽  
Author(s):  
Yogesh Kumar ◽  
Vibhor Wadhwa ◽  
Lauren Phillips ◽  
Parham Pezeshk ◽  
Avneesh Chhabra
Keyword(s):  
Skeletal Muscle ◽  
Mr Imaging ◽  
Systematic Approach

Skeletal muscle lymphoma: observations at MR imaging

1996 ◽  
Vol 25 (5) ◽  
pp. 425-430 ◽  
Author(s):  
S. Eustace ◽  
Carl S. Winalski ◽  
Archie McGowen ◽  
Howard Lan ◽  
David Dorfman
Keyword(s):  
Skeletal Muscle ◽  
Mr Imaging

Peripheral Nerve Injury: Diagnosis with MR Imaging of Denervated Skeletal Muscle—Experimental Study in Rats

Radiology ◽  
2008 ◽  
Vol 247 (2) ◽  
pp. 409-417 ◽  
Author(s):  
Eiko Yamabe ◽  
Toshiyasu Nakamura ◽  
Koichi Oshio ◽  
Yoshito Kikuchi ◽  
Hiroyasu Ikegami ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Experimental Study ◽  
Mr Imaging ◽  
Peripheral Nerve ◽  
Nerve Injury ◽  
Peripheral Nerve Injury

scholarly journals 7-Tesla Magnetic Resonance Imaging Precisely and Noninvasively Reflects Inflammation and Remodeling of the Skeletal Muscle in a Mouse Model of Antisynthetase Syndrome

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Clara Sciorati ◽  
Antonio Esposito ◽  
Lara Campana ◽  
Tamara Canu ◽  
Antonella Monno ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Skeletal Muscle ◽  
Magnetic Resonance ◽  
Mr Imaging ◽  
Mouse Model ◽  
Experimental Models ◽  
Inflammatory Myopathies ◽  
Antisynthetase Syndrome ◽  
Resonance Imaging ◽  
Amino Terminal

Inflammatory myopathies comprise heterogeneous disorders. Their etiopathogenesis is poorly understood, because of the paucity of informative experimental models and of approaches for the noninvasive study of inflamed tissues. Magnetic resonance imaging (MRI) provides information about the state of the skeletal muscle that reflects various facets of inflammation and remodeling. This technique has been scarcely used in experimental models of inflammatory myopathies. We characterized the performance of MRI in a well-established mouse model of myositis and the antisynthetase syndrome, based on the immunization of wild-type mice with the amino-terminal fragment of histidyl-tRNA synthetase (HisRS). Over an eight-week period following myositis induction, MRI enabled precise identification of pathological events taking place in muscle tissue. Areas of edema and of active inflammation identified by histopathology paralleled muscle modifications detected noninvasively by MRI. Muscles changes were chronologically associated with the establishment of autoimmunity, as reflected by the development of anti-HisRS antibodies in the blood of immunized mice. MR imaging easily appreciated muscle damage and remodeling even if actual disruption of myofiber integrity (as assessed by serum concentrations of creatinine phosphokinase) was limited. Thus, MR imaging represents an informative and noninvasive analytical tool for studyingin vivoimmune-mediated muscle involvement.

MR Imaging of Skeletal Muscle Hemangiomas

1996 ◽  
Vol 37 (1P1) ◽  
pp. 140-144 ◽  
Author(s):  
G. Jenner ◽  
V. Söderlund ◽  
H. F. C. Bauer ◽  
O. Brosjö
Keyword(s):  
Skeletal Muscle ◽  
Mr Imaging ◽  
Spin Echo ◽  
Correct Diagnosis ◽  
Signal Enhancement ◽  
Surgical Staging ◽  
Mr Images ◽  
Imaging Protocols ◽  
Hyperintense Signal ◽  
Signal Characteristics

Purpose: Our purpose was to evaluate how MR imaging depicts the vascular fibrofatty structure of hemangiomas. Material and Methods: MR images of 16 histologically proven skeletal muscle hemangiomas were reviewed retrospectively in a nonblinded manner. One patient was examined at 0.5 T, 9 at 1.0 T, and 6 at 1.5 T, and the imaging protocols varied. Results: All lesions were lobulated/tubular. Signal characteristics of fat were seen in 13 lesions as lace-like thin septa within or around the tumor. All 16 studies exhibited a hyperintense signal on T2-weighted spin-echo (SE) (n=15) or T1-weighted fast fat suppressed inversion recovery SE images (n=1). Postcontrast images showed marked signal enhancement in parts of the areas, both of high and low T2-weighted signal. Surgical staging based on MR images was correct in all lesions. Conclusion: MR images display the characteristic vascular fibrofatty structure of hemangiomas and may allow correct diagnosis.

MR Imaging Mapping of Skeletal Muscle Denervation in Entrapment and Compressive Neuropathies

Radiographics ◽  
2011 ◽  
Vol 31 (2) ◽  
pp. 319-332 ◽  
Author(s):  
Su-Jin Kim ◽  
Sung Hwan Hong ◽  
Woo Sun Jun ◽  
Ja-Young Choi ◽  
Jae Sung Myung ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Mr Imaging ◽  
Muscle Denervation

Denervated skeletal muscle: MR imaging. Work in progress.

Radiology ◽  
1993 ◽  
Vol 189 (2) ◽  
pp. 511-515 ◽  
Author(s):  
M Uetani ◽  
K Hayashi ◽  
N Matsunaga ◽  
K Imamura ◽  
N Ito
Keyword(s):  
Skeletal Muscle ◽  
Mr Imaging ◽  
Work In Progress
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