Objective: MR neurography (MRN) has increasingly been used in clinical practice for the evaluation of peripheral nerve disease. This article reviews the historic perspective of MRN, the current imaging trends of this modality, and the future directions and applications that have shown potential for improved imaging and diagnostic capabilities.
Conclusion: MRN has come a long way in the past 2 decades. Excellent depiction of 3D nerve anatomy and pathology is currently possible. Further technical developments in diffusion-based nerve and muscle imaging, whole-body MRN, and nerve-specific MR contrast agents will likely play a major role in advancing this novel field and understanding peripheral neuromuscular diseases in the years to come.
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http://dx.doi.org/10.2214/AJR.10.6012 | DOI Listing |
J Am Acad Orthop Surg
December 2024
From the Department of Orthopaedic Surgery, University of Utah, Salt Lake City, UT (Graesser), the Washington University School of Medicine in St. Louis, Mallinckrodt Institute of Radiology, St. Louis, MO (Parsons), and the Department of Orthopaedic Surgery, Washington University School of Medicine in St. Louis, St. Louis, MO (Olafsen, Dy, and Brogan).
Traumatic peripheral nerve injuries represent a spectrum of conditions and remain challenging to diagnose and prognosticate. High-resolution ultrasonography and magnetic resonance neurography have emerged as useful diagnostic modalities in the evaluation of traumatic peripheral nerve and brachial plexus injuries. Ultrasonography is noninvasive, is able to rapidly interrogate large areas and multiple nerves, allows for a dynamic assessment of nerves and their surrounding anatomy, and is cost-effective.
View Article and Find Full Text PDFAmyloid
December 2024
Amyloidosis Center Heidelberg, Heidelberg University Hospital, Heidelberg, Germany.
Background: Previously, T2-relaxation time (T2) and proton spin density (ρ) detected nerve injury in a small group of ATTRv amyloidosis. Here, we aim to quantify peripheral nerve impairment in a large cohort of symptomatic and asymptomatic ATTRv amyloidosis and correlate T2-relaxometry markers with clinical parameters and nerve conduction studies (NCS).
Methods: Eighty participants with pathologic variants of the gene () and 40 controls prospectively underwent magnetic resonance neurography.
Eur Radiol Exp
August 2024
Institute of Neuroradiology, University Hospital of Heidelberg, Heidelberg, Germany.
Background: Magnetic resonance neurography (MRN) is increasingly used as a diagnostic tool for peripheral neuropathies. Quantitative measures enhance MRN interpretation but require nerve segmentation which is time-consuming and error-prone and has not become clinical routine. In this study, we applied neural networks for the automated segmentation of peripheral nerves.
View Article and Find Full Text PDFPlast Reconstr Surg
May 2024
Department of Hand-, Plastic and Reconstructive Surgery, Burn Center, BG Trauma Center Ludwigshafen, Department of Hand- and Plastic Surgery, University of Heidelberg, Heidelberg, Germany.
Introduction: Traumatic peripheral nerve injuries can result in significant functional impairments and long-term sequelae. This study evaluated the long-term outcomes of a chitosan tube implantation protecting the epineural coaptation after peripheral nerve injuries using two different tube versions (V 1.0 and V 2.
View Article and Find Full Text PDFMuscle Nerve
July 2024
Division of Neurology, University Health Network, University of Toronto, Toronto, Ontario, Canada.
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