Anterior interosseous nerve syndrome: fascicular motor lesions of median nerve trunk.

ABSTRACT:

Objective

We sought to determine lesion sites and spatial lesion patterns in spontaneous anterior interosseous nerve syndrome (AINS) with high-resolution magnetic resonance neurography (MRN).

Methods

In 20 patients with AINS and 20 age- and sex-matched controls, MRN of median nerve fascicles was performed at 3T with large longitudinal anatomical coverage (upper arm/elbow/forearm): 135 contiguous axial slices (T2-weighted: echo time/repetition time 52/7,020 ms, time of acquisition: 15 minutes 48 seconds, in-plane resolution: 0.25 × 0.25 mm). Lesion classification was performed by visual inspection and by quantitative analysis of normalized T2 signal after segmentation of median nerve voxels.

Results

In all patients and no controls, T2 lesions of individual fascicles we

SUBMITTER: Pham M 

PROVIDER: S-EPMC3963415 | biostudies-literature | 2014 Feb

REPOSITORIES: biostudies-literature