Diagnosing ulnar neuropathy at the elbow using magnetic resonance neurography

Keen NN, Chin CT, Engstrom JW, et al (Univ of California San Francisco) Skeletal Radiol 41:401-407, 2012^§

Abstract

Introduction

Early diagnosis of ulnar neuropathy at the elbow is important. Magnetic resonance neurography (MRN) images peripheral nerves. We evaluated the usefulness of elbow MRN in diagnosing ulnar neuropathy at the elbow.

Methods

The MR neurograms of 21 patients with ulnar neuropathy were reviewed retrospectively. MRN was performed prospectively on 10 normal volunteers. The MR neurograms included axial T1 and axial T2 fat-saturated and/or axial STIR sequences. The sensitivity and specificity of MRN in detecting ulnar neuropathy were determined.

Results

The mean ulnar nerve size in the symptomatic and normal groups was 0.12 and 0.06 cm² (P

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