T1ρ MRI quantification of arthroscopically confirmed cartilage degeneration

摘要: Nine asymptomatic subjects and six patients underwent T(1)rho MRI to determine whether Outerbridge grade 1 or 2 cartilage degeneration observed during arthroscopy could be detected noninvasively. was performed 2-3 months postarthroscopy, using sagittal T(1)-weighted axial coronal MRI, from which spatial relaxation maps were calculated segmented images. Median times of with arthroscopically documented significantly different (P < 0.001), median exceeded articular by 2.5 9.2 ms. In eight observations mild at (Outerbridge grades 2), mean compartment elevated in five, but all observations, large foci increased observed. It determined that detect some, not all, a larger patient population is needed the sensitivity these changes.