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Abstract #0855

Diagnostic Accuracy of Zero Echo Time Magnetic Resonance Imaging for Grading of Cervical Spine Neural Foraminal Stenosis

Darryl B. Sneag1, Parina H. Shah1, Ryan Breighner1, Yoshimi Endo1, Erin C. Argentieri1, and Matthew F. Koff1

1Department of Radiology and Imaging, Hospital for Special Surgery, New York, NY, United States

A challenge for orthopaedic radiologists is utilizing MRI to assess neuroforaminal (NF) stenosis of the cervical spine as cortical bone does not display with sufficient signal intensity. This study utilized zero echo time (ZTE) imaging to visualize the cervical spine and compare evaluation of NF stenosis to corresponding CT imaging. Substantial agreement was found between ZTE and CT (κ=0.71). ZTE tended to underestimate stenotic grade in 25% of foramina, with a majority (66%) of differences within one grading level. Further development of ZTE and image processing may minimize the need for cervical spine CT in assessing NF stenosis.

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