Document Detail

Diagnostic value of the optic nerve sheath subarachnoid space in patients with intracranial hypotension syndrome.
MedLine Citation:
PMID:  22680244     Owner:  NLM     Status:  MEDLINE    
OBJECT: The size of the subarachnoid space in the optic nerve sheath (ONS) on MR images is thought to reflect intracranial pressure. The diagnostic value of this space was investigated in patients with spontaneous intracranial hypotension (SIH) syndrome.
METHODS: Coronal fat-saturated T2-weighted MRI of the orbit was performed in 15 patients with SIH fulfilling the diagnostic criteria for headache caused by low CSF pressure of the International Classification of Headache Disorders or the criteria for spontaneous spinal CSF leaks and intracranial hypotension. The size of the subarachnoid space in the ONS was measured in 2 slices behind the eyeballs. The images were compared before and after treatment. The CSF pressure was measured by lumbar puncture.
RESULTS: Before treatment, the diameter of the ONS subarachnoid space ranged from 2.58 to 4.21 mm (mean 3.34 mm) and the thickness from 0 to 0.48 mm (mean 0.15 mm). Both measurements showed significant correlations with CSF opening pressure, and 8 patients had no CSF space before treatment. The size of CSF space increased in many patients after effective treatment.
CONCLUSIONS: Disappearance of the CSF space in the ONS was frequently observed in patients with SIH. This characteristic finding may be useful in the diagnosis of SIH as well as in the evaluation of treatment effectiveness.
Nobuyasu Takeuchi; Toru Horikoshi; Hiroyuki Kinouchi; Arata Watanabe; Takashi Yagi; Kentaro Mitsuka; Nobuo Senbokuya
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Publication Detail:
Type:  Journal Article     Date:  2012-06-08
Journal Detail:
Title:  Journal of neurosurgery     Volume:  117     ISSN:  1933-0693     ISO Abbreviation:  J. Neurosurg.     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-08-02     Completed Date:  2012-10-11     Revised Date:  2013-04-11    
Medline Journal Info:
Nlm Unique ID:  0253357     Medline TA:  J Neurosurg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  372-7     Citation Subset:  AIM; IM    
Department of Neurosurgery, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo, Yamanashi, Japan.
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MeSH Terms
Bed Rest
Cerebrospinal Fluid Pressure / physiology
Follow-Up Studies
Headache / pathology,  therapy
Image Interpretation, Computer-Assisted*
Intracranial Hypotension / diagnosis*,  therapy
Magnetic Resonance Imaging*
Middle Aged
Myelin Sheath / pathology*
Optic Nerve / pathology*
Subarachnoid Space / pathology*
Comment In:
J Neurosurg. 2013 Mar;118(3):705
J Neurosurg. 2013 Mar;118(3):704-5   [PMID:  23289818 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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