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Copyright ©2014 Baishideng Publishing Group Inc.
World J Radiol. Sep 28, 2014; 6(9): 636-642
Published online Sep 28, 2014. doi: 10.4329/wjr.v6.i9.636
Figure 8
Figure 8 Optic nerve sheath diameter. Using a 7.5-MHz linear probe on the closed upper eyelid, the optic nerve was visualized as a linear hypoechoic structure with clearly defined margins posterior to the globe. Sheath diameter was measured 3 mm behind the globe. ONSD: Optic nerve sheath diameter.