AIM: Flash visual evoked potentials (F-VEP) can monitor the function of optic nerve and rear visual pathway, and also know the blood supply of brain tissue near visual pathway.
目的：闪光刺激视觉诱发电位可用来监测术中视神经及后视路的功能，也可以了解视觉传导通路上脑组织的血供情况。
Objective to discuss the feasibility and value of diffusion tensor imaging (DTI) to reveal optic nerve and visual pathway.
目的探讨应用dti技术对视神经纤维束和视路成像的可能性和应用价值。
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