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Diffusion Tensor Fiber Tractography of the Optic Radiation: Analysis with 6-, 12-, 40-, and 81-Directional Motion-Probing Gradients, a Preliminary Study

A. Yamamotoa, Y. Mikia, S. Urayamab, Y. Fushimia, T. Okadaa, T. Hanakawab, H. Fukuyamab and K. Togashia

a Department of Diagnostic Imaging and Nuclear Medicine, Kyoto University, Kyoto, Japan
b Human Brain Research Center, Kyoto University, Kyoto, Japan


Figure 1
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  		Fig 1. The anteroposterior distance between the tip of the Meyer loop and the lateral geniculate body on an axial section was defined as a loop index. Examples of loop index (A and B) are shown.


Figure 2
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  		Fig 2. Reconstructed diffusion tensor fiber tractography of the optic radiation by using 6-MPG (A), 12-MPG (B), 40-MPG (C), and 81-MPG (D) settings.





Copyright © 2008 by the American Society of Neuroradiology. Print ISSN: 0195-6108 Online ISSN: 1936-959X