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Magnetic resonance imaging of skeletal muscles in the polymyositis
Author(s) -
Fujitake Junko,
Ishikawa Yasuhiro,
Fujii Hayato,
Nishimura Kazumasa,
Hayakawa Katsumi,
Tatsuoka Yoshihisa
Publication year - 1997
Publication title -
muscle and nerve
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.025
H-Index - 145
eISSN - 1097-4598
pISSN - 0148-639X
DOI - 10.1002/(sici)1097-4598(199711)20:11<1463::aid-mus18>3.0.co;2-2
Subject(s) - magnetic resonance imaging , polymyositis , skeletal muscle , coronal plane , intensity (physics) , anatomy , medicine , lesion , homogeneous , pathology , nuclear magnetic resonance , radiology , physics , quantum mechanics , thermodynamics
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 T2‐weighted 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. © 1997 John Wiley & Sons, Inc. Muscle Nerve 20: 1463–1466, 1997