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RT Journal Article
SR Electronic
T1 Decreased Diameter of the Optic Nerve Sheath Associated with CSF Hypovolemia
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 863
OP 864
DO 10.3174/ajnr.A1027
VO 29
IS 5
A1 Watanabe, A.
A1 Horikoshi, T.
A1 Uchida, M.
A1 Ishigame, K.
A1 Kinouchi, H.
YR 2008
UL http://www.ajnr.org/content/29/5/863.abstract
AB SUMMARY: The subarachnoid space around the optic nerve can be detected by fat-saturated T2-weighted MR imaging of the orbit, and dilation of this space reflects increased intracranial pressure. We examined 3 patients with CSF hypovolemia with MR imaging of the orbit and measured the optic nerve sheath diameter before and after treatment. We showed that the subarachnoid space is decreased in patients with CSF hypovolemia and the usefulness of this finding.