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Related Experiment Video

Updated: Apr 16, 2026

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3D Brachial Plexus Neurography With Variable-Rate Selective Excitation RF Pulses.

Emma J McKinney1, Xiaoying Cai2, Darryl B Sneag1

  • 1Department of Radiology and Imaging, Hospital for Special Surgery, New York, New York, USA.

Journal of Magnetic Resonance Imaging : JMRI
|April 14, 2026
PubMed
Summary

The VERSE STIR-TSE sequence enhances brachial plexus MRN image quality, offering superior nerve conspicuity without increasing motion artifacts compared to conventional STIR-TSE.

Keywords:
3DMR neurographyVERSEbrachial plexusslab‐selective

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Area of Science:

  • Radiology and Imaging Science
  • Neuroimaging Techniques
  • Medical Physics

Background:

  • Conventional 3D turbo spin echo (TSE) for brachial plexus MRN uses long slab-selective RF pulses.
  • These pulses can violate Carr-Purcell-Meiboom-Gill conditions, potentially increasing imaging artifacts.

Purpose of the Study:

  • To evaluate if VERSE (Variable Echo Refocusing and Spatial Encoding) STIR-TSE improves nerve conspicuity and subjective appeal in brachial plexus MRN.
  • To compare motion artifact levels between VERSE STIR-TSE and conventional STIR-TSE.

Main Methods:

  • Prospective, cross-sectional study involving 24 subjects with suspected brachial plexopathy.
  • 3-Tesla MRI scans using 3D STIR-TSE with and without VERSE pulse sequences.
  • Qualitative assessment of nerve conspicuity and motion by three blinded radiologists; statistical analysis using Wilcoxon signed-rank tests.

Main Results:

  • VERSE STIR-TSE was significantly preferred by all radiologists.
  • No significant difference in motion artifact between VERSE and conventional STIR-TSE (p=0.11).
  • Significantly greater conspicuity of the suprascapular nerve with VERSE; phantom studies showed increased signal in muscle and nerve mimics.

Conclusions:

  • VERSE STIR-TSE offers superior image quality for brachial plexus MRN compared to conventional STIR-TSE.
  • The technique improves nerve visualization without compromising motion artifact levels.
  • VERSE STIR-TSE is a valuable advancement for brachial plexus neuroimaging.