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Utility of High-Resolution 3 T MR Neurography in Peripheral Nerve Pathologies

Authors: Devinderpal Singh Dhanota; Didar Singh; Kavita Saggar; Archana Ahluwalia; Monika Singla;

Utility of High-Resolution 3 T MR Neurography in Peripheral Nerve Pathologies

Abstract

Abstract Background and Objectives: Magnetic resonance neurography (MRN) allows for the direct visualization of nerves, which can be instrumental in diagnosing, characterizing, and localizing peripheral nerve disorders. We planned to conduct a study on the patients of peripheral nerve injuries who were referred for MRN and to compare the findings of MRN to those of nerve conduction studies (NCS) on various focal nerve disorders. Methods: This prospective study was conducted over 1½ years, involving 58 subjects with clinically diagnosed focal peripheral nerve pathologies who were referred for MRN to the Department of Radiodiagnosis and Imaging. The range of focal peripheral nerve pathologies detected using MRN was correlated and compared to NCS and/or electromyography results, as well as to surgical and/or histopathological results, wherever available. The Chi-squared (χ²) test and Fisher’s exact test were used to evaluate the association between MRN and NCS outcomes. Results: The study identified a broad spectrum of peripheral nerve pathologies. Out of 58 subjects, abnormalities were found in 52 (89.6%) subjects, whereas six patients (10.3%) did not show any significant abnormalities. Fifty patients (86.3%) showed abnormalities on both MRN and NCS, while five patients (8.6%) did not show any abnormalities on either MRN or NCS. Two patients (3.4%) showed abnormalities on MRN but had normal NCS results, and in one case (1.7%), MRN was normal but NCS showed an abnormality. Out of the 58 MRN examinations, 25 were found to have brachial plexus involvement. Conclusion: MRN is a highly sensitive tool for evaluating peripheral nerve pathologies. Its correlation with NCS and intraoperative findings further supports its clinical utility. The 3 T MRN should be considered a key imaging modality in the diagnostic process for peripheral nerve pathologies. In addition, it serves as a valuable guide for planning therapeutic interventions and assessing prognosis in various patient subsets.

Related Organizations
Keywords

brachial plexus, ncs-emg (nerve conduction studies–electromyography), Original Article, Neurology. Diseases of the nervous system, mrn (magnetic resonance neurography), RC346-429, peripheral nerve pathologies

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
2
Average
Average
Average
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gold