Articular cartilage deformation determined in an intact tibiofemoral joint by displacement-encoded imaging.
Articular cartilage deformation determined in an intact tibiofemoral joint by displacement-encoded imaging.
复制标题
关节软骨变形通过位移编码成像在完整的胫骨关节中确定。
DOI:
10.1002/mrm.21927
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发表时间:
2009-04
影响因子:
3.3
通讯作者:
Hu, Maury L.
中科院分区:
文献类型:
--
作者:
Chan, Deva D.;Neu, Corey P.;Hu, Maury L.
关键词:
This study demonstrates the in vitro displacement and strain of articular cartilage in a cyclically-compressed and intact joint using displacement-encoded imaging with stimulated echoes (DENSE) and fast spin echo (FSE). Deformation and strain fields exhibited complex and heterogeneous patterns. The displacements in the loading direction ranged from −1688 to −1481 μm in the tibial cartilage and from −1601 to −764 μm in the femoral cartilage. Corresponding strains ranged from −9.8% to 0.7% and from −4.3% to 0.0%. The displacement and strain precision were determined to be 65 μm and less than 0.2%, respectively. Displacement-encoded magnetic resonance imaging is capable of determining the nonuniform displacements and strains in the articular cartilage of an intact joint to a high precision. Knowledge of these nonuniform strains is critical for the in situ characterization of normal and diseased tissue, as well as the comprehensive evaluation of repair constructs designed using regenerative medicine.
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DOI:
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发表时间:
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影响因子:
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发表时间:
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