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Updated: Aug 11, 2025

Nerve Ultrasound Protocol to Detect Dysimmune Neuropathies
Published on: October 7, 2021
Imaging of the Peripheral Nerves of the Lower Extremity
Yoshimi Endo1, Theodore T Miller1, Darryl B Sneag1
1Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA; Weill Medical College of Cornell University, Weill Cornell Medicine, 1300 York Avenue, New York, NY 10065, USA.
Abstract:
Continued advancements in magnetic resonance (MR) neurography and ultrasound have made both indispensable tools for the workup of peripheral neuropathy. Ultrasound provides high spatial resolution of superficial nerves, and techniques such as "sonopalpation" and dynamic maneuvers can improve accuracy. Superior soft tissue contrast, ability to evaluate both superficial and deep nerves with similar high resolution, and reliable characterization of denervation are strengths of MR neurography. Nevertheless, familiarity with normal anatomy, anatomic variants, and common sites of nerve entrapment is essential for radiologists to use both MR neurography and ultrasound effectively.
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