Advanced

AJNR - American Journal of Neuroradiology

Published ahead of print on February 29, 2008
doi: 10.3174/ajnr.A1027

This Article Abstract Full Text Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via CrossRef Citing Articles via Google Scholar Google Scholar Articles by Watanabe, A. Articles by Kinouchi, H. Search for Related Content PubMed PubMed Citation Articles by Watanabe, A. Articles by Kinouchi, H.

Decreased Diameter of the Optic Nerve Sheath Associated with CSF Hypovolemia

A. Watanabe^a, T. Horikoshi^a, M. Uchida^a, K. Ishigame^b and H. Kinouchi^a

^a Department of Neurosurgery, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
^b Department of Radiology, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan

View larger version (143K): [in this window] [in a new window]   Fig 1. Coronal fat-saturated T2-weighted orbital MR images of cases 1, 2, and 3. In case 1, MR images showing the subarachnoid space (arrow) had collapsed and the ONS could not be detected before treatment (A) but became visible with diameter of 5.5 mm on the right and 5.8 mm on the left after treatment (B). In case 2, MR images showing the ONS diameter just behind the optic globe before treatment were 5.0 mm on the right and 4.7 mm on the left (C) and became 5.9 mm and 5.3 mm, respectively, after treatment (D). In case 3, MR images showing the subarachnoid space had collapsed, and the ONS could not be detected before treatment (E) but became visible with a diameter of 6.2 mm on the right and 6.2 mm on the left after treatment (F).