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Insights into Imaging
Fig. 3. | Insights into Imaging

Fig. 3.

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

Fig. 3.

45-year-old female suffering from left leg pain, severe weakness and numbness. DWI-RESOLVE images (a) b = 50, (b) b = 500, (c) b = 800. The arrows on the b800 image correlate to the left L5, S1 and S2 nerves from anterior to posterior. The nerves were evaluated by both readers on axial DWI-RESOLVE images as positive for abnormality (grade III abnormal size and signal intensity). Axial T2W TSE d of the lumbar spine at L5/S1 highlights a large left-sided disc herniation (arrow), which explains symptoms and correlates to nerve abnormalities. The color-mapped image e demonstrates the asymmetry of the lumbosacral plexus to better effect in this patient. Long arrows indicate abnormal left nerves and short arrows indicate normal contralateral side

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