Combined MR imaging towards subject-specific knee contact analysis

Chen, Bailang, Lambrou, Tryphon, Offiah, Amaka , Fry, Martin and Todd-Pokropek, Andrew (2011) Combined MR imaging towards subject-specific knee contact analysis. Visual Computer, 27 (2). pp. 121-128. ISSN 0178-2789

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A combined magnetic resonance (MR) imaging method has been proposed to investigate individual's knee functionality quantitatively under weight-bearing condition. High resolution MR data were acquired first to reconstruct the subject-specific anatomical model. A dynamic MR acquisition was obtained afterwards to record the motion of knee joint. A tri-rigid registration was applied to retrieve the knee joint motion, leading to a 12 degree-of-freedom (DoF) knee functional model. Using this model, the tibiofemoral contact mechanism was studied and analysed in both 2D and 3D. A mathematical definition of contact points of cartilage surfaces is given by modelling these surfaces as manifolds. It is believed that such subject-specific motion of contact points on cartilage surfaces of femur and two tibia plateaus can provide valuable insights for clinical applications such as knee replacement surgery.

Keywords:Dynamic MRI, Knee, Contact analysis, Combined MR imaging
Subjects:F Physical Sciences > F350 Medical Physics
G Mathematical and Computer Sciences > G740 Computer Vision
Divisions:College of Science > School of Computer Science
ID Code:7122
Deposited On:14 Dec 2012 13:38

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