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An Updated Review of Magnetic Resonance Neurography for Plexus Imaging
Magnetic resonance neurography (MRN) is increasingly used to visualize peripheral nerves in vivo. However, the implementation and interpretation of MRN in the brachial and lumbosacral plexi are challenging because of the anatomical complexity and technical limitations. The purpose of this article wa...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Korean Society of Radiology
2023
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10613850/ https://www.ncbi.nlm.nih.gov/pubmed/37899521 http://dx.doi.org/10.3348/kjr.2023.0150 |
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author | Jung, Joon-Yong Lin, Yenpo Carrino, John A |
author_facet | Jung, Joon-Yong Lin, Yenpo Carrino, John A |
author_sort | Jung, Joon-Yong |
collection | PubMed |
description | Magnetic resonance neurography (MRN) is increasingly used to visualize peripheral nerves in vivo. However, the implementation and interpretation of MRN in the brachial and lumbosacral plexi are challenging because of the anatomical complexity and technical limitations. The purpose of this article was to review the clinical context of MRN, describe advanced magnetic resonance (MR) techniques for plexus imaging, and list the general categories of utility of MRN with pertinent imaging examples. The selection and optimization of MR sequences are centered on the homogeneous suppression of fat and blood vessels while enhancing the visibility of the plexus and its branches. Standard 2D fast spin-echo sequences are essential to assess morphology and signal intensity of nerves. Moreover, nerve-selective 3D isotropic images allow improved visualization of nerves and multiplanar reconstruction along their course. Diffusion-weighted and diffusion-tensor images offer microscopic and functional insights into peripheral nerves. The interpretation of MRN in the brachial and lumbosacral plexi should be based on a thorough understanding of their anatomy and pathophysiology. Anatomical landmarks assist in identifying brachial and lumbosacral plexus components of interest. Thus, understanding the varying patterns of nerve abnormalities facilitates the interpretation of aberrant findings. |
format | Online Article Text |
id | pubmed-10613850 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | The Korean Society of Radiology |
record_format | MEDLINE/PubMed |
spelling | pubmed-106138502023-11-01 An Updated Review of Magnetic Resonance Neurography for Plexus Imaging Jung, Joon-Yong Lin, Yenpo Carrino, John A Korean J Radiol Musculoskeletal Imaging Magnetic resonance neurography (MRN) is increasingly used to visualize peripheral nerves in vivo. However, the implementation and interpretation of MRN in the brachial and lumbosacral plexi are challenging because of the anatomical complexity and technical limitations. The purpose of this article was to review the clinical context of MRN, describe advanced magnetic resonance (MR) techniques for plexus imaging, and list the general categories of utility of MRN with pertinent imaging examples. The selection and optimization of MR sequences are centered on the homogeneous suppression of fat and blood vessels while enhancing the visibility of the plexus and its branches. Standard 2D fast spin-echo sequences are essential to assess morphology and signal intensity of nerves. Moreover, nerve-selective 3D isotropic images allow improved visualization of nerves and multiplanar reconstruction along their course. Diffusion-weighted and diffusion-tensor images offer microscopic and functional insights into peripheral nerves. The interpretation of MRN in the brachial and lumbosacral plexi should be based on a thorough understanding of their anatomy and pathophysiology. Anatomical landmarks assist in identifying brachial and lumbosacral plexus components of interest. Thus, understanding the varying patterns of nerve abnormalities facilitates the interpretation of aberrant findings. The Korean Society of Radiology 2023-11 2023-10-19 /pmc/articles/PMC10613850/ /pubmed/37899521 http://dx.doi.org/10.3348/kjr.2023.0150 Text en Copyright © 2023 The Korean Society of Radiology https://creativecommons.org/licenses/by-nc/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (https://creativecommons.org/licenses/by-nc/4.0 (https://creativecommons.org/licenses/by-nc/4.0/) ) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Musculoskeletal Imaging Jung, Joon-Yong Lin, Yenpo Carrino, John A An Updated Review of Magnetic Resonance Neurography for Plexus Imaging |
title | An Updated Review of Magnetic Resonance Neurography for Plexus Imaging |
title_full | An Updated Review of Magnetic Resonance Neurography for Plexus Imaging |
title_fullStr | An Updated Review of Magnetic Resonance Neurography for Plexus Imaging |
title_full_unstemmed | An Updated Review of Magnetic Resonance Neurography for Plexus Imaging |
title_short | An Updated Review of Magnetic Resonance Neurography for Plexus Imaging |
title_sort | updated review of magnetic resonance neurography for plexus imaging |
topic | Musculoskeletal Imaging |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10613850/ https://www.ncbi.nlm.nih.gov/pubmed/37899521 http://dx.doi.org/10.3348/kjr.2023.0150 |
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