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Legg-Calvé-Perthes disease (LCPD) is a pediatric hip disorder caused by femoral head ischemia and osteonecrosis. In this work, we investigated whether 3D T2 and T1ρ relaxation time mapping are sensitive to ischemic injury to the bone and marrow of the femoral epiphysis and metaphysis following surgical induction of femoral head ischemia in a piglet model of LCPD. We found that T2 and T1ρ increased in the ischemic femoral epiphysis and decreased in the perfused metaphyseal spongiosa. Our findings support the potential clinical use of T2 and T1ρ mapping to assess the severity of femoral head injury in patients with LCPD.
Buko et al. (Wed,) studied this question.
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