Normal sciatic nerve. Normal sciatic nerve. A, Coronal T1-weighted spin-echo image (600/10/2) illustrates the normal longitudinal fascicular appearance.

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Presentation transcript:

Normal sciatic nerve. Normal sciatic nerve. A, Coronal T1-weighted spin-echo image (600/10/2) illustrates the normal longitudinal fascicular appearance of the pelvic sciatic nerve (arrows).B, T2-weighted fast spin-echo fat-saturated image (5200/102/3; echo train length, 8) shows normal sciatic nerve signal intensity (arrows).C, Sagittal oblique plane T1-weighted image (550/9/2) depicts the characteristic transverse fascicular morphology of normal sciatic nerve (arrow) at the right obturator internus muscle level (asterisk).D, Sagittal oblique plane T2-weighted fast spin-echo fat saturated image (5000/102/2; echo train length, 8), obtained at the same level as that show in C, portrays normal sciatic nerve signal intensity (arrow). The T2 signal of normal nerve will be less intense than that of adjacent vessels and slightly hyperintense (occasionally isointense) to that of adjacent muscle. Kevin R. Moore et al. AJNR Am J Neuroradiol 2001;22:786-794 ©2001 by American Society of Neuroradiology