Abstract #2964

Regional Variations in T2 Relaxations Times in the Hip Cartilage of Female Water Polo Players and Synchronized Swimmers

Elka B Rubin¹, Joanna L Langner², Marianne S Black², Arjun D Desai², James W MacKay³, Carly Jones⁴, Kimberly E Hall², Marc R Safran², Feliks Kogan², and Garry E Gold²

¹Radiology, Stanford University, Stanford, CA, United States, ²Stanford University, Stanford, CA, United States, ³Radiology, Cambridge University, Cambridge, United Kingdom, ⁴Centre for Hip Health and Mobility, University of British Columbia, Vancouver, BC, Canada

Water polo players and synchronized swimmers have been found to have an increased prevalence of femoroacetabular impingement morphology compared to the general population. In this study, we used quantitative MRI to identify regional patterns in the composition of hip cartilage of Division 1 female water polo players and synchronized swimmers. Variations in T₂ relaxation times showed regional hip cartilage differences between the water polo players and synchronized swimmers and within the sub-regions of the synchronized swimmer’s hip cartilage. This study suggests that microstructural differences are present in the various regions of these athletes’ hip cartilage.

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