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A, Diffusion-weighted image (TR, 10 seconds; TE, 94

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1 A, Diffusion-weighted image (TR, 10 seconds; TE, 94
A, Diffusion-weighted image (TR, 10 seconds; TE, 94.5 milliseconds; b, 1000 s/mm2) shows much higher signal intensity in the left optic nerve compared with the right. A, Diffusion-weighted image (TR, 10 seconds; TE, 94.5 milliseconds; b, 1000 s/mm2) shows much higher signal intensity in the left optic nerve compared with the right. B, ADC image shows decreased signal intensity in the left optic nerve proving that the higher signal intensity in the left optic nerve on DWI is due to restriction in water diffusion. L.S. Al-Shafai, and D.J. Mikulis AJNR Am J Neuroradiol 2006;27: ©2006 by American Society of Neuroradiology

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