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Abstract #1209

Regional Variation in Canine Knee Meniscus T2* Relaxation Times: Assessment of Normative Values and Histologic Correlation

Sarah L. Pownder 1 , Parina H. Shah 1 , Kei Hayashi 2 , Hollis G. Potter 1 , and Matthew F. Koff 1

1 Department of Radiology and Imaging - MRI, Hospital for Special Surgery, New York, New York, United States, 2 College of Veterinary Medicine, Cornell University, Ithaca, New York, United States

Canine models of anterior cruciate ligament reconstruction are commonly used to compare different reconstruction techniques, with the posterior horn of the medial meniscus as a common site of injury resulting from knee instability. This study performed T2* regional mapping of the canine knee meniscus in 5 control subjects. The regions of interest (ROIs) were the anterior and posterior horns of the medial and lateral menisci. The results indicated prolonged T2* values in the posterior horn of the medial meniscus as compared to the remaining ROIs. The results provide a baseline of normative values for researchers in future preclinical studies.

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