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Background <p>Magnetic resonance neurography (MRN) has emerged as a powerful imaging modality for evaluating peripheral and plexus neuropathies, offering significant advantages over traditional electrodiagnostic studies such as electromyography (EMG) and nerve conduction studies (NCS).</p> Purpose <p>This study aimed to assess the diagnostic utility of MRN in comparison to these conventional methods, evaluating its strengths, limitations, and clinical applications in neuropathy assessment.</p> Methods <p>A cross-sectional study was conducted on 33 patients presenting with radiculopathy or plexopathy. All participants underwent comprehensive clinical evaluation, EMG, NCS, and MRN. Statistical analysis was performed using SPSS v26, incorporating correlation studies, diagnostic sensitivity, specificity, and predictive values of each modality, receiver operating characteristic curve analysis, and comparative evaluations.</p> Results <p>Magnetic resonance neurography showed high sensitivity (90%) and specificity (43.48%) in predicting EMG abnormalities, with an area under the curve of 0.774. MRN showed 100% sensitivity and specificity in predicting NCS abnormalities. There was a moderately strong and statistically significant positive correlation between EMG and MRN studies (<i>r</i> = 0.616, <i>p</i> = 0.004*), while there was a weak correlation between EMG and NCS studies that was not statistically significant (<i>r</i> = 0.066, <i>p</i> = 0.733).</p> Conclusions <p>These findings highlight MRN’s ability to provide detailed anatomical visualization of nerve pathology, particularly in cases where EMG and NCS yield inconclusive results. Moreover, MRN is instrumental in detecting early structural changes, aiding in preoperative planning, and improving diagnostic confidence in complex neuropathies.</p>

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The diagnostic utility of magnetic resonance neurography in diagnosis of plexus and peripheral neuropathies compared to electroneurophysiological studies

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年8月4日

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  • Mona Elkalioubie,
  • Habeba Mostafa Ahmed,
  • Wessam El Zayat,
  • Kholoud Soliman,
  • Aliaa Hussein,
  • Dina H. Gamal El-Din

摘要

Background

Magnetic resonance neurography (MRN) has emerged as a powerful imaging modality for evaluating peripheral and plexus neuropathies, offering significant advantages over traditional electrodiagnostic studies such as electromyography (EMG) and nerve conduction studies (NCS).

Purpose

This study aimed to assess the diagnostic utility of MRN in comparison to these conventional methods, evaluating its strengths, limitations, and clinical applications in neuropathy assessment.

Methods

A cross-sectional study was conducted on 33 patients presenting with radiculopathy or plexopathy. All participants underwent comprehensive clinical evaluation, EMG, NCS, and MRN. Statistical analysis was performed using SPSS v26, incorporating correlation studies, diagnostic sensitivity, specificity, and predictive values of each modality, receiver operating characteristic curve analysis, and comparative evaluations.

Results

Magnetic resonance neurography showed high sensitivity (90%) and specificity (43.48%) in predicting EMG abnormalities, with an area under the curve of 0.774. MRN showed 100% sensitivity and specificity in predicting NCS abnormalities. There was a moderately strong and statistically significant positive correlation between EMG and MRN studies (r = 0.616, p = 0.004*), while there was a weak correlation between EMG and NCS studies that was not statistically significant (r = 0.066, p = 0.733).

Conclusions

These findings highlight MRN’s ability to provide detailed anatomical visualization of nerve pathology, particularly in cases where EMG and NCS yield inconclusive results. Moreover, MRN is instrumental in detecting early structural changes, aiding in preoperative planning, and improving diagnostic confidence in complex neuropathies.