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Abstract #3498

Feasibility Study of Diffusion Tensor Imaging of Guyon's Canal

Eiko Yamabe1, Ryo Miyagi2, Toshinori Sakai3, Toshiyasu Nakamura4, Hiroshi Yoshioka1

1Department of Radiological Sciences, University of California Irvine, Orange, CA, United States; 2Department of Orthopaedic Surgery, Miyoshi City National Insurance Nishi-Iya Clinic, Tokushima, Japan; 3Department of Orthopedics, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan; 4Department of Orthopaedic Surgery, Keio University School of Medicine, Tokyo, Japan

We demonstrated the clinical feasibility of diffusion tensor imaging of Guyonfs canal in healthy volunteers and compared diffusion values of the ulnar nerve with those of the median nerve. The ulnar nerve at Guyonfs canal, including the superficial and the deep branches, was well appreciated on fiber tracking images. FA and location of the ulnar nerve demonstrated a strong negative linear correlation from the proximal to the distal while ADC showed a moderate positive linear correlation. FA and ADC of the ulnar nerve showed lower and higher values than those of the median nerve, respectively.