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Enhanced Neonatal Brachial Plexus MR Neurography: A Comparative Analysis of Compressed Sensitivity Encoding versus

Baiqi Zhu1, Yu Guo1,2, Xuehua Peng1,2

  • 1From the Department of Radiology (B.Z., Y.G., X.P., A.Z., J.L., J.S.), Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China.

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Compressed Sensitivity Encoding (CS) significantly reduces neonatal brachial plexus MRI scan times by ~30% without compromising image quality compared to conventional Sensitivity Encoding (SENSE). This accelerates diagnosis for brachial plexus injuries.

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Area of Science:

  • Medical Imaging
  • Radiology
  • Neuroimaging

Background:

  • Neonatal brachial plexus imaging is challenged by long scan times and motion artifacts.
  • Accelerated imaging techniques are needed to improve diagnostic accuracy and success rates.

Purpose of the Study:

  • To evaluate Compressed Sensitivity Encoding (CS) for neonatal brachial plexus imaging.
  • To compare CS with conventional Sensitivity Encoding (SENSE) in terms of image quality and scan time.

Main Methods:

  • 45 neonates with suspected brachial plexus injury underwent MRI using both CS and SENSE 3D Nerve VIEW sequences.
  • Parallel acquisition acceleration factors were 1.3 for SENSE and 6 for CS.
  • Image quality was assessed quantitatively (SNR, CNR) and qualitatively by two pediatric radiologists.

Main Results:

  • CS reduced acquisition time by approximately 30% (3:36 vs. 5:08 minutes).
  • No significant differences in SNR or nerve-to-muscle CNR were observed between CS and SENSE.
  • Radiologists' qualitative assessments showed comparable image quality between CS and SENSE, with strong inter-rater agreement.

Conclusions:

  • Compressed Sensitivity Encoding (CS) is a feasible and effective technique for neonatal brachial plexus imaging.
  • CS significantly reduces scan time while maintaining diagnostic image quality comparable to SENSE.
  • This advancement holds potential for improved patient outcomes in neonatal neuroimaging.