与脑脊液容量减少相关的视神经鞘直径减小。
Decreased diameter of the optic nerve sheath associated with CSF hypovolemia.
作者信息
Watanabe A, Horikoshi T, Uchida M, Ishigame K, Kinouchi H
机构信息
Department of Neurosurgery, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan.
出版信息
AJNR Am J Neuroradiol. 2008 May;29(5):863-4. doi: 10.3174/ajnr.A1027. Epub 2008 Feb 29.
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.
摘要
视神经周围的蛛网膜下腔可通过眼眶脂肪抑制T2加权磁共振成像检测到，该腔隙的扩张反映颅内压升高。我们对3例脑脊液容量减少患者进行了眼眶磁共振成像检查，并在治疗前后测量了视神经鞘直径。我们发现脑脊液容量减少患者的蛛网膜下腔减小，并证明了这一发现的实用性。
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