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Abstract #3508

Demonstration of the Collagenous Components of Peripheral Nerve with Short and Ultrashort TE (UTE) Pulse Sequences.

Paolo F. Felisaz 1,2 , Sheronda Statum 2,3 , Jiang Du 2 , Eric Y. Chang 2,3 , Justin M. Brown 4 , Sameer B. Shah 5 , Christine B. Chung 2,3 , Nikolaus M. Szeverenyi 2 , and Graeme M. Bydder 2

1 Department of Radiology, University of Pavia, Pavia, Italy, 2 Department of Radiology, University of California San Diego, San Diego, CA, United States, 3 Department of Radiology, VA San Diego Healthcare System, San Diego, CA, United States, 4 Department of Surgery, University of California San Diego, San Diego, CA, United States, 5 Department of Orthopedic Surgery, University of California San Diego, San Diego, CA, United States

The objective of this study was to use short and ultrashort TE pulse sequences to demonstrate and distinguish between the collagenous components of peripheral nerve (external epineurium, internal epineurium and perineurium) at 3T and 11.7T. These tissues are not usually demonstrable with standard pulse sequences. Conventional spin echo, 2D and 3D UTE, and UTE-IR sequences were used. Magic angle effects and susceptibility effects were observed. We were able to specifically identify the epineurium and the perineurium within peripheral nerve. Assessing the integrity of these structures is critical for grading peripheral nerve injuries and determining the need for neurosurgical repair.

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