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Abstract #3307

Noncontrast Cartilage Assessment (T1ρ) of the Hip in Femoroacetabular Impingment: Can We Predict Early Changes?

Arturo Cardenas-Blanco1, 2, Kawan Rakhra1, Andrew Speirs3, Ian Cameron1, 3, Mark Schweitzer1, 2, Paul Beaule, 24

1Diagnostic Imaging, The Ottawa Hospital, Ottawa, Ontario, Canada; 2University of Ottawa, Ottawa, Ontario, Canada; 3Carleton University, Ottawa, Ontario, Canada; 4Orthopedic surgery division, The Ottawa Hospital, Ottawa, Ontario, Canada

In degenerative articular disorders, pre-structural cartilage degeneration is important to diagnose, as these patients are most amenable to surgical as well as non-surgical interventions. In Femoroacetabular Impingement, intervention is most appropriately applied to those patients with pre-structural cartilage changes. Hence we sought to determine, via T1ρ, if there are early changes in cartilage proteoglycan content in patients with unilateral symptomatic CAM type FAI, as compared to their asymptomatic CAM type FAI contra-lateral side, normal volunteers, as well as a unique possibly transition group who have CAM deformity but who are asymptomatic.

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Keywords

active advantage agreement amenable amplitude analyzed anatomic anatomical anterior applied approved arbitrary articular aspects assess assessment asymptomatic automatically bandwidth basis become begins biochemical board bone bump cartilage combined comparing concentration consistent contra contrast controls criteria damage deformities deformity degeneration degree delay density depiction determine deviation diagnose diagnosis differentiate disorders division early error errors ethics expected exponential femoral field findings fitting fulfill function furthermore head hence hips hospital impingement important include included individual individuals institutional interrogation intervention intra intravenous inversely joint lateral leading length lock manual maps mark matched matrix medicine minutes mono onset orthopedic osteoarthritis parallel patient patients pixel plot plotted posterior potential precede prevent process processed profile proportional proposed protocol proton resolution respectively roof semi sensitive sensitivity shorter side significance slice sought spin statistical statistically structural subjects suggest suggesting superimposed superior surgery surgical symptomatic symptoms tailed terms transition turbo type underwent unilateral unique valuable variable vertical view written years yielding