ArticleMuscle & nerve2026
Modeling Postoperative Nerve Regeneration Using Diffusion MRI: A Preclinical Study of a Novel Mathematical Approach.
Article in Muscle & nerve, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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1 citing paper in PubMed.
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Authors and funding
17 authors.
Funding
Abstract
INTRODUCTION/
aimsNerve regeneration after injury must occur in a timely fashion to restore function. Current methods of assessment provide limited information following trauma, resulting in delayed management and suboptimal outcomes. In this study, we evaluated the ability of diffusion magnetic resonance imaging (MRI) and a mathematical model based on the Gompertz function to monitor nerve regeneration after injury and repair.
methodsSprague Dawley rats were assigned to two treatment groups (sham = 2, cut, immediate repair = 7), and in vivo diffusion tensor imaging (DTI) was performed every 2 weeks until 12 weeks post-surgery. Functional recovery was evaluated weekly over the same time period via the sciatic functional index (SFI).
resultsAfter injury, SFI and DTI-derived fractional anisotropy (FA) values exhibited similar longitudinal trends and distinctions in both sham and cut/repair (C/R) cohorts. FA values at the distal section displayed the highest correlation with behavioral indices at the region nearest to the injury (r = 0.84, p < 0.001), followed by FA values at the central section (r = 0.82, p < 0.001) and the section farthest from the injury (r = 0.70, p < 0.001). DISCUSSION: Findings suggest that automated analyses of FA profiles along the nerve may provide insights for distinguishing successful/unsuccessful nerve recovery. This tool, once proven in a larger-scale study, can provide clinicians with the needed tool to early diagnose nerve recovery and identify cases requiring a second repair surgery.
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