ArticleQuantitative imaging in medicine and surgery2025
Comparison of ultrasound and magnetic resonance imaging of the median nerve's recurrent motor branch and the value of its diameter in diagnosing carpal tunnel syndrome.
Article in Quantitative imaging in medicine and surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Carpal Tunnel Syndrome Diagnosis: A Narrative Review of Complementary Roles of Neuromuscular Ultrasound and Electrodiagnostic Studies.Medical science monitor : international medical journal of experimental and clinical research · 2026Review
- Ultrasonographic Median Nerve Cross-Sectional Area and Clinical, Electrodiagnostic, and Laboratory Biomarkers in Electrodiagnostically Confirmed Carpal Tunnel Syndrome: A Single-Center Correlational Study.Diagnostics (Basel, Switzerland) · 2025Article
- Clinical and Electrodiagnostic Correlations of Ultrasound-Detected Markedly Enlarged Median Nerve at the Wrist.Neurology international · 2025Article
- Potential Use of a New Energy Vision (NEV) Camera for Diagnostic Support of Carpal Tunnel Syndrome: Development of a Decision-Making Algorithm to Differentiate Carpal Tunnel-Affected Hands from Controls.Diagnostics (Basel, Switzerland) · 2025Article
- Ultrasound-Guided Percutaneous Release and Mini-Open Surgery in Carpal Tunnel Syndrome: A Comparison of Short- and Long-Term Outcomes.Medicina (Kaunas, Lithuania) · 2025Article
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6 authors.
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Abstract
Background: Anatomical variations of the recurrent motor branch (RMB) are at risk of injury during carpal tunnel release procedures. Previous studies have visualized the RMB using ultrasound (US) and magnetic resonance imaging (MRI) but have not compared the imaging capabilities of the two. Previous investigations have overlooked two specific types of carpal tunnel syndrome (CTS): simultaneous compression of the median nerve and the RMB and isolated compression of the latter. This study aims to identify the best imaging method to prevent iatrogenic injury to the RMB by comparing US and MRI capabilities. It also aims to devise a new method for the comprehensive diagnosis of CTS by evaluating the initial diameter of the RMB (RMB-ID). Additionally, this study aims to gain insights into the distribution patterns of the different anatomic variations of the RMB in healthy individuals and patients through an analysis of these variations. A cross-sectional study was conducted. Methods: Forty healthy adults subjected to bilateral US and MRI of the RMB were included in this study. The US and magnetic resonance images of each patient were subsequently compared. US imaging of the RMB was performed on 102 hands of healthy adults and 112 hands of patients with CTS. The cross-sectional area of the median nerve (MN-CSA) and RMB-ID were measured. Results: US provided better visibility of the RMB than did MRI (P<0.05). No statistically significant difference was observed in the variation type composition of the RMB between the healthy and patient groups (P>0.05). The RMB-ID and the MN-CSA significantly differed between groups (P<0.001). The RMB-ID increased with the increase of the MN-CSA (R=0.842; P<0.001). The optimal cutoff point for diagnosing CTS of the RMB-ID was 0.85 mm, yielding a sensitivity of 83.0%, a specificity of 92.2%, and the area under the curve of 0.945. The MN-CSA was 0.115 cm Conclusions: US outperformed MRI in visualizing the anatomical variations of the RMB. The RMB-ID was an accurate and valid indicator for comprehensive diagnosis of CTS.
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