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RT Journal Article
SR Electronic
T1 MR imaging of optic nerve lesions: value of gadopentetate dimeglumine and fat-suppression technique.
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 749
OP 754
VO 11
IS 4
A1 Hendrix, L E
A1 Kneeland, J B
A1 Haughton, V M
A1 Daniels, D L
A1 Szumowski, J
A1 Williams, A L
A1 Mark, L P
A1 Czervionke, L F
YR 1990
UL http://www.ajnr.org/content/11/4/749.abstract
AB 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.