MRI-derived T2 relaxation times and cartilage morphometry of the tibio-femoral joint in subjects with and without osteoarthritis during a 1-year follow-up

被引:100
作者
Stahl, R.
Blumenkrantz, G.
Carballido-Gamio, J.
Zhao, S.
Munoz, T.
Le Graverand-Gastineau, M. P. Hellio
Li, X.
Majumdar, S.
Link, T. M.
机构
[1] Univ Calif San Francisco, Dept Radiol, San Francisco, CA 94107 USA
[2] Pfizer Global Res & Dev, Ann Arbor, MI 48105 USA
关键词
osteoarthritis; cartilage; magnetic resonance imaging; T2 relaxation time; volume; follow-up;
D O I
10.1016/j.joca.2007.04.018
中图分类号
R826.8 [整形外科学]; R782.2 [口腔颌面部整形外科学]; R726.2 [小儿整形外科学]; R62 [整形外科学(修复外科学)];
学科分类号
摘要
Objective: To assess differences in magnetic resonance imaging (MRI)-based compositional (T2) and morphometric (volume and thickness) parameters of the tibio-femoral joint cartilage in subjects with and without osteoarthritis (OA) and compare these with clinical assessment tools during a 1-year follow-up. Method. Three Tesla MRI of the knee joint was performed in eight female patients (body mass index (BMI > 30) with early OA and 10 age-matched female controls (BMI < 30) at baseline (BL) and after 3, 6 and 12 months. Cartilage T2 maps, volume and average thickness were calculated in five compartments (medial/lateral femoral condyle, medial/lateral tibia and trochlea). These data were correlated with changes in clinical parameters and joint space width determined in standardized knee radiographs using a mixed random effects model. Results: At BL, T2 was significantly higher (P < 0.05) across the cartilage in patients (45.68 +/- 5.17 ms) compared to controls (41.75 +/- 4.33 ms). Patients had significantly (P < 0.05) less cartilage volume and less average cartilage thickness in the tibia than controls (2.10 +/- 0.53 cm(3) vs 2.91 +/- 0.49 cm(3) and 1.59 +/- 0.24 mm vs 1.90 +/- 0.29 mm, respectively). A significant change in clinical parameters of OA, cartilage T2 values or a decrease of volume and average thickness could not be demonstrated within both groups. Conclusion: Significant differences between the groups indicate that both T2 and morphometric parameters may be useful in quantifying early OA related changes. In a 12-month follow-up, however, no significant alterations of the studied parameters were found, which may be due to the length of the observation interval. (c) 2007 Osteoarthritis Research Society International. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:1225 / 1234
页数:10
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