TY - JOUR T1 - MR imaging of optic nerve lesions: value of gadopentetate dimeglumine and fat-suppression technique. JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 749 LP - 754 VL - 11 IS - 4 AU - L E Hendrix AU - J B Kneeland AU - V M Haughton AU - D L Daniels AU - J Szumowski AU - A L Williams AU - L P Mark AU - L F Czervionke Y1 - 1990/07/01 UR - http://www.ajnr.org/content/11/4/749.abstract N2 - 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. ER -