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Insights into Imaging

Table 5 Signal-to-noise ratio findings for lumbosacral nerves (EMG/NCV testing patients)

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

Anatomical structures

Side

DWI-RESOLVE b50

DWI-RESOLVE b500

DWI-RESOLVE b800

L5 nerve (n = 2)

Abnormal

45.2 (± 3.5)

23.7 (± 1.6)

15.3 (± 2.2)

 

Normal

31.4 (± 3.6)

16.4 (± 1.7)

11.7 (± 1.4)

S1 nerve (n = 5)

Abnormal

42.9 (± 5.9)

26.7 (± 4.3)

19.9 (± 3.9)

 

Normal

30.7 (± 2.8)

19.8 (± 2.4)

15.1 (± 2.7)

  1. Mean (± SD) of SNR shown by sequence type and anatomical structure, and p values from Wilcoxon signed-rank tests were corrected for 6 tests
  2. *Bonferroni-adjusted p value < 0.05 when the abnormal nerve was compared to the normal nerve. Non-significant differences determined
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