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Abstract #0334

Temporal Changes of a Canine Model of Patellar Tendinopathy Using UTE MRI T2* Assessment: A Pilot Study

Sarah G. Pownder1, Kei Hayashi2, Brian G. Caserto3, Bin Lin1, Hollis G. Potter1, and Matthew F. Koff1

1Department of Radiology and Imaging - MRI, Hospital for Special Surgery, New York, NY, United States, 2Cornell University, Ithaca, NY, United States, 3VetPath Services, Stone Ridge, NY, United States

Tendon damage has been traditionally evaluated invasively with biopsy. This pilot study evaluated the effects of an induced mechanical strain of the patellar tendon on UTE-MRI metrics and corresponding histology. The induced strain had a greater effect on the quantitative MRI metrics over time, by percentage change, than by the level of induced strain. A corresponding histologic analysis had similar findings. The results indicate the capability of utilizing MRI to evaluate differences in the quantitative T2* metrics of the patellar tendon. Time dependent changes in quantitative UTE-MRI metrics may be detected using a model of induced subclinical tendon damage.

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