High-resolution 3-Tesla magnetic resonance neurography of musculocutaneous neuropathy

Chhabra, Avneesh; Lee, Pearlene P.; Bizzell, Cary; Faridian-Aragh, Neda; Hashemi, Shar; Belzberg, Alan J.; Carrino, John A.

doi:10.1016/j.jse.2011.06.008

Cited by 11 publications

(2 citation statements)

References 12 publications

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“…Magnetic resonance neurography (MRN) is a modification of the conventional MRI, found to be useful in direct imaging of the nerves (6–10). The basic idea of MRN is to enhance the nerve signal by suppressing the surrounding muscle, fluid, and fat.…”

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confidence: 99%

Diffusion tensor imaging of forearm nerves in humans

Zhou

Kumaravel

Patel

et al. 2012

Magnetic Resonance Imaging

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Purpose To implement diffusion tensor imaging (DTI) protocol for visualization of peripheral nerves in human forearm. Materials and Methods This HIPAA-compliant study was approved by our institutional review board and written informed consent was obtained from 10 healthy participants. T1-and T2-weighted turbo spin echo with fat saturation, short tau inversion recovery (STIR), and DTI sequences with 21 diffusion encoding directions were implemented to acquire images of the forearm nerves with an 8 channel knee coil on a 3T MRI scanner. Identification of the nerves was based on T1-weighted, T2-weighted, STIR and DTI-derived fractional anisotropy (FA) images. Maps of the DTI derived indices, FA, mean diffusivity (MD), longitudinal diffusivity (λ//) and radial diffusivity (λ⊥) along the length of the nerves were generated. Results DTI-derived maps delineated the forearm nerves more clearly than images acquired with other sequences. Only ulnar and median nerves were clearly visualized on the DTI-derived FA maps. No significant differences were observed between the left and right forearms in any of the DTI-derived measures. Significant variation in the DTI measures was observed along the length of the nerve. Significant differences in the DTI measures were also observed between the median and ulnar nerves. Conclusion DTI is superior in visualizing the median and ulnar nerves in the human forearm. The normative data could potentially help distinguish normal from diseased nerves.

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confidence: 99%

Diffusion tensor imaging of forearm nerves in humans

Zhou

Kumaravel

Patel

et al. 2012

Magnetic Resonance Imaging

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show abstract

“…In particular, MRI at 3 T promises to be a valuable tool in the identification and characterization of isolated musculocutaneous nerve lesions, as the nerve itself can be successfully visualized (Chhabra et al 2012). They are mainly posttraumatic or exercise related, occasionally entrapment of the nerve is observed in the region, where the nerve penetrates the coracobrachial muscle.…”

Section: Musculocutaneous Nerve Neuropathiesmentioning

confidence: 99%