Abstract #5099

Cartilage mapping in asymptomatic hips with cam-type FAI: Does the MRI T1ρ profile change over time?

Gerd Melkus^1,2, George Grammatopoulos³, Kawan S Rakhra^1,2, and Paul E Beaulé^3,4

¹Medical Imaging, The Ottawa Hospital, Ottawa, ON, Canada, ²Radiology, University of Ottawa, Ottawa, ON, Canada, ³Orthopaedic Surgery, The Ottawa Hospital, Ottawa, ON, Canada, ⁴Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada

In this study, we investigated whether the T1ρ profile of the hip cartilage changes over time in a subject group with asymptomatic cam-type femoroacetabular impingement (FAI). After the initial T1ρ data acquisitions, the scans were repeated on the same group in a mean time interval of 3.3 years. For the majority of the subject group there were no significant T1ρ changes in the whole joint and in different hip cartilage regions. However, 1 patient (out of 12) showed significant (>20%) increased T1ρ values (i.e. proteoglycan reduction).

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