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Updated: Feb 3, 2026

Nerve Ultrasound Protocol to Detect Dysimmune Neuropathies
Published on: October 7, 2021
MR Imaging of Entrapment Neuropathies of the Lower Extremity
Elisabeth R Garwood1, Alejandra Duarte2, Jenny T Bencardino2
1Department of Radiology, NYU Langone - Orthopedic Hospital, 301 East 17th Street 6th Floor, Room 600, New York, NY 10003, USA.
Abstract:
Entrapment neuropathies of the lower extremity are commonly encountered and present a diagnostic challenge. Historical diagnostic workhorses-the physical examination combined with electrodiagnostic studies-are now frequently supplemented by MR neurography. MR neurography is a high-resolution, noninvasive, and operator-independent imaging modality that has proven useful in diagnosis, disease severity assessment, and informing treatment decisions in the management of lower extremity entrapment neuropathies. Currently, the assessment of the peripheral nerves relies heavily on reader identification of morphologic nerve changes; however, emerging innovative MR sequences and PET/MR imaging hold the potential to provide noninvasive means of functional assessment.
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