Abstract #2867

DTI assessment of optic pathway function in patients with anterior visual pathway compression

Eun-Jung Choi¹, Koung Mi Kang², Woojin Jung¹, Jongho Lee¹, Seung Hong Choi², and Yong Hwy Kim³

¹Department of Electrical and Computer Engineering, Seoul National University, Seoul, Korea, Republic of, ²Department of Radiology, Seoul National University Hospital, Seoul, Korea, Republic of, ³Department of Neurosurgery, Seoul National University Hospital, Seoul, Korea, Republic of

We explored the diffusion tensor imaging features of the optic radiations in patients with anterior visual pathway compression. The measurements were correlated with the visual tract impairment score. Significant differences in fractional anisotropy (FA), mean diffusivity (MD) and radial diffusivity (RD) were measured in the bilateral optic radiations depending on the visual disturbance. In addition, FA, MD and RD were correlated with the severity of visual field defects in the visual disturbance group. The results demonstrate the anterior visual pathway compression influences visual field defect affecting optic radiations in the brain.

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