Abstract #4500

Measurement of Fast T2* of the ACL Using 3D UTE Imaging

Kenneth Wengler^1,2, Mingqian Huang ², Elaine Gould², Mark Schweitzer², Seth Korbin³, James Paci³, and Xiang He²

¹Biomedical Engineering, Stony Brook University, Stony Brook, NY, United States, ²Radiology, Stony Brook University School of Medicine, Stony Brook, NY, United States, ³Orthopaedic Surgery, Stony Brook University School of Medicine, Stony Brook, NY, United States

3D-UTE imaging was utilized to estimate the fast T₂* component of ACL after graft repair surgery. The average fast T₂* component in the grafted ACL 3 months post-surgery for eight subjects is 1.66 +/- 0.4 ms. Two subjects currently have both 3 and 6 month post-surgery images. The ACL average fast T₂* component went from 2.55ms to 1.81ms at three and six months post-surgery respectively for the first subject, and 1.39ms to 1.24ms for the second subject. The results demonstrate promise for 3D-UTE T₂* mapping of bound water to evaluate ACL repair.

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