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Decreased diameter of the optic nerve sheath associated with CSF hypovolemia.

Abstract
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.
AuthorsA Watanabe, T Horikoshi, M Uchida, K Ishigame, H Kinouchi
JournalAJNR. American journal of neuroradiology (AJNR Am J Neuroradiol) Vol. 29 Issue 5 Pg. 863-4 (May 2008) ISSN: 1936-959X [Electronic] United States
PMID18310231 (Publication Type: Case Reports, Journal Article)
Topics
  • Adipose Tissue (pathology)
  • Female
  • Humans
  • Intracranial Hypotension (complications, pathology)
  • Magnetic Resonance Imaging (methods)
  • Male
  • Middle Aged
  • Optic Nerve (pathology)
  • Optic Nerve Diseases (complications, pathology)
  • Syndrome

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