Key result
MRI depicts involved femoral epiphysis extent more clearly than pinhole scintigraphy in Legg-Calvé-Perthes disease.
Why the study?
The comparative effectiveness of MRI versus pinhole bone scintigraphy in evaluating the femoral epiphysis during the evolutionary phase of Legg-Calvé-Perthes disease was unclear.
Does MRI provide better evaluation of the femoral epiphysis compared to pinhole bone scintigraphy in patients with Legg-Calvé-Perthes disease?
Observational (n=40)
Does MRI provide better evaluation of the femoral epiphysis compared to pinhole bone scintigraphy in patients with Legg-Calvé-Perthes disease?
MRI is a powerful technique that depicts the extent of the involved femoral epiphysis more clearly than pinhole scintigraphy in Legg-Calvé-Perthes disease.
MRI may offer clearer epiphyseal visualization than scintigraphy in Legg-Calvé-Perthes disease; leaves open effects on management or outcomes.
Magnetic resonance images (MRIs) and pinhole scintigraphs were obtained in 40 patients (40 hips) with Legg-Calvé-Perthes disease in the evolutionary phase, the mean age at onset of symptoms being 6 years 7 months. The correlation between the uptake of the pinhole scintigraphs and the signal intensity of MRIs was examined in reference to the extent of the involved femoral epiphysis. MRIs depicted the extent of the involved femoral epiphysis more clearly than did pinhole scintigraphs. The uptakes of the pinhole scintigraphs corresponded with high or normal intensity of T2-weighted images on MRI. The femoral epiphysis in the initial phase (in which the signal intensity of the lateral area of the epiphysis on T1-weighted coronal images was low or intermediate and high or unchanged on T2-weighted coronal images corresponded to the lateral column [recanalization] on the pinhole scintigraphs) suggested a low risk of subsequent deformity. MRI is a powerful new technique to evaluate the femoral epiphysis in Legg-Calvé-Perthes disease.
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Uno et al. (1995) conducted an observational in Legg-Calvé-Perthes disease (n=40). Magnetic resonance imaging vs. Pinhole scintigraphy was evaluated on Extent of the involved femoral epiphysis and correlation between uptake and signal intensity. Magnetic resonance imaging depicted the extent of the involved femoral epiphysis more clearly than pinhole scintigraphy in patients with Legg-Calvé-Perthes disease.
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