ArticleAnnals of Indian Academy of Neurology2025
Chronic Inflammatory Demyelinating Polyradiculoneuropathy: A Comparative Study of Magnetic Resonance Neurography and High-Resolution Nerve Ultrasound in the Assessment of Brachial Plexus.
Article in Annals of Indian Academy of Neurology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed.
- Authors' Reply- Letter Corresponding to the Article "Chronic Inflammatory Demyelinating Polyradiculoneuropathy: A Comparative Study of Magnetic Resonance Neurography and High-Resolution Nerve Ultrasound in the Assessment of Brachial Plexus".Annals of Indian Academy of Neurology · 2026Article
- Correspondence: "Chronic Inflammatory Demyelinating Polyradiculoneuropathy: A Comparative Study of Magnetic Resonance Neurography and High-Resolution Nerve Ultrasound in the Assessment of Brachial Plexus".Annals of Indian Academy of Neurology · 2026Article
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9 authors.
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Abstract
BACKGROUND AND
objectivesMagnetic resonance neurography (MRN) and high-resolution ultrasound (HRUS) are complementary diagnostic modalities in the diagnosis of chronic inflammatory demyelinating polyradiculoneuropathy (CIDP). HRUS may be a cheaper bedside alternative to MRN. It is important to know their correlation with each other and with clinical severity and electrophysiology. There are no data on the normal cross-sectional area (CSA) of the brachial plexus in the Indian population. We undertook this study to establish a normative data of CSA of the brachial plexus for Indians, compare HRUS and MRN findings in CIDP, and correlate the findings with electrophysiological parameters.
methodsA prospective, observational, cross-sectional study was done in the Department of Neurology, National Institute of Mental Health and Neurosciences, Bangalore, India from February 2020 to February 2022. Twenty adult patients with CIDP underwent clinical and electrophysiological evaluation. Their MRN and ultrasound (USG) findings were compared to those of 20 age- and sex-matched healthy controls. Correlation between disease severity, electrophysiological parameters, MRN, and HRUS was done.
resultsControls had a median CSA of 0.06-0.07 cm 2 for all 3 trunks of the brachial plexus, while CIDP patients had a median CSA of 0.11-0.14 cm 2 . There was a nonsignificant positive correlation between distal latency and CSA, and nonsignificant negative correlation with conduction velocity, amplitudes, and F-wave persistence. No significant correlation was seen between inflammatory neuropathy cause and treatment disability score and CSA. MRN and HRUS showed good correlation.
conclusionsMRN and HRUS show a significant increase in CSA in CIDP. HRUS may be a cheaper bedside alternative to MRN.
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