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Magnetic resonance imaging of skeletal muscles in the polymyositis

✍ Scribed by Junko Fujitake; Yasuhiro Ishikawa; Hayato Fujii; Kazumasa Nishimura; Katsumi Hayakawa; Yoshihisa Tatsuoka

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
202 KB
Volume
20
Category
Article
ISSN
0148-639X

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✦ Synopsis

Magnetic resonance imaging of skeletal muscles was performed in 11 patients with polymyositis. Two types of muscle lesions were revealed. The first, inflammation, showed increased signal intensity on T2weighted images and iso-intensity on T1-weighted images. The second, fatty replacement, showed increased signal intensity on both images. The coronal sections could elucidate the extension of the lesion in each affected muscle. Inflammation was relatively diffuse, while homogeneous fatty replacement tended to begin at the lower myotendinous junctions.

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