Evaluation of the nerve fascicular structure can be useful in diagnosing nerve damage, but it is a very challenging task with 3T MRI due to limited resolution. In this pilot study, we present the feasibility of high-resolution 7T MRI for examining the nerve fascicular structure.A 3D gradient-spoiled sequence was used for imaging peripheral nerves in extremities. Images acquired with different in-plane resolutions (0.42 x 0.42mm vs. 0.12 x 0.12mm), and different main field strengths (7T vs. 3T) were compared.The individual nerve fascicles were identified at 0.12 x 0.12mm resolution in both field strengths, but not at 0.42 x 0.42mm resolution. The fascicular structure was more sharply depicted in 7T images than in 3T images.High-resolution 3D imaging with 7T MRI demonstrated feasibility in imaging nerve fascicular structures. This article is protected by copyright. All rights reserved.
View details for PubMedID 29211916