Percent difference in relaxation times between viable and necrotic epiphyseal cartilage using various MRI sequences.

<p>Large lesion (5 × 5 mm incision): 3, 5, 9, weeks post surgery</p><p>Small lesion (3 × 4 mm incision): 4, 6, 10 weeks post surgery</p><p>Due to technical problems, the T₂ measurement was invalid for the 3-week specimen and was not included.</p><p>Percent difference in relaxation times between viable and necrotic epiphyseal cartilage using various MRI sequences.