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American Journal of Neuroradiology, Vol 18, Issue 1 161-164, Copyright © 1997 by American Society of Neuroradiology

ARTICLES

Normal contrast enhancement of extraocular muscles: fat-suppressed MR findings

Y Amano, M Amano and T Kumazaki
Department of Radiology, Nippon Medical School, Tokyo, Japan.

PURPOSE: To evaluate contrast enhancement of normal extraocular muscles in the orbit. METHODS: Noncontrast and contrast-enhanced T1-weighted images of the orbit were acquired using a fat-suppression MR technique in eight patients with no orbital disease. Contrast enhancement of 64 extraocular muscles was evaluated and compared with that of 16 temporal muscles. RESULTS: Compared with temporal muscles, all extraocular muscles markedly enhanced after administration of contrast material. CONCLUSIONS: Because normal extraocular muscles enhanced markedly with contrast material, more attention should be paid to these muscles when using contrast-enhanced, fat-suppressed T1-weighted MR imaging to evaluate pathologic conditions.




Copyright © 2008 by the American Society of Neuroradiology. Print ISSN: 0195-6108 Online ISSN: 1936-959X