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Abstract #5099

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

Gerd Melkus1,2, George Grammatopoulos3, Kawan S Rakhra1,2, and Paul E Beaulé3,4

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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