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Insights into Imaging
Fig. 5 | Insights into Imaging

Fig. 5

From: Identifying lumbosacral plexus nerve root abnormalities in patients with sciatica using 3T readout-segmented echo-planar diffusion weighted MR neurography

Fig. 5

Demonstration of DWI-RESOLVE signal inhomogeneity. The b50 image (a) of a patient with normal neurophysiology testing demonstrates relatively prominent loss of signal on the left side of the body compared to the right. The left sciatic nerve (short arrow) is obscured due to this loss of signal. The normal right sciatic nerve (long arrow) appears asymmetric due to this spurious artifact. The b800 image (b) on a different patient demonstrates the hyperintense signal (arrow) that can occur at the edge of the field of view on some patients. This type of signal inhomogeneity does not typically obscure or distort the lumbosacral plexus

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