Abstract #0362

Compositional and Morphological Characterization of Knee Articular Cartilage in Collegiate Basketball Players using Multiparametric MRI

Kenneth T. Gao¹, Valentina Pedoia¹, Radhika Tibrewala¹, Katherine A. Young², Feliks Kogan², Matthew F. Koff³, Garry E. Gold², Hollis Potter³, and Sharmila Majumdar¹

¹Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, CA, United States, ²Department of Radiology, Stanford University, Stanford, CA, United States, ³Department of Radiology and Imaging, Hospital for Special Surgery, New York, NY, United States

Magnetic resonance imaging (MRI) is commonly used to evaluate the morphology of athletes with high knee impact; however, the biochemical composition of their cartilage is not as well understood. In this study, we utilized voxel-based relaxometry (VBR), a fully automatic registration technique, to compare local distribution of knee articular cartilage T_1ρ and T₂ relaxation times between high knee impact athletes (basketball players) and non-knee impact athletes (swimmers). Statistical analysis revealed laminar differences near the patella, with basketball players having prolonged values in the deep layer. These findings, amongst others, related well to morphological evaluation of the image set.

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