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American Journal of Roentgenology, Vol 155, 849-854, Copyright © 1990 by American Roentgen Ray Society

ARTICLES

MR imaging of optic nerve lesions: value of gadopentetate dimeglumine and fat-suppression technique

LE Hendrix, JB Kneeland, VM Haughton, DL Daniels, J Szumowski, AL Williams, LP Mark and LF Czervionke
Department of Radiology, Medical College of Wisconsin, Froedtert Memorial Lutheran Hospital, Milwaukee 53226.

Eleven patients with known or suspected optic nerve lesions and eight normal subjects were examined with spin-echo technique at 1.5 T with unenhanced T1-weighted imaging, IV gadopentetate-dimeglumine-enhanced T1-weighted imaging, and enhanced T1-weighted imaging with fat suppression. Two pathologically proved and four presumed optic nerve meningiomas demonstrated significant enhancement and were best seen with the fat-suppression technique. None of the three presumed optic nerve gliomas nor the optic nerves of normal subjects demonstrated qualitative enhancement. We conclude that the use of a fat-suppression technique with gadopentetate dimeglumine enhancement improves delineation of enhancing optic nerve lesions. This technique should be useful for evaluating other anatomic regions where enhancing tissue marginates fat.
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A. Jackson, T. Patankar, and R. D. Laitt
Intracanalicular Optic Nerve Meningioma: A Serious Diagnostic Pitfall
AJNR Am. J. Neuroradiol., June 1, 2003; 24(6): 1167 - 1170.
[Abstract] [Full Text] [PDF]


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Copyright © 1990 by the American Roentgen Ray Society.