Abstract #1170
Development of a Novel Combined Tibial and Femoral Bone Registration Method for Reliable Quantification of MR-based Knee Joint Kinematics
Musa Zaid 1 , Drew Lansdown 1 , Karupppasamy Subburaj 2 , C. Benjamin Ma 1 , Richard Souza 2 , and Xiaojuan Li 2
1
Orthopaedic Surgery, University of
California San Francisco, San Francisco, California,
United States,
2
Radiology
and Biomedical Imaging, University of California San
Francisco, California, United States
Magnetic resonance imaging is an appealing approach for
measuring knee kinematics. We have developed a novel
combined tibial and femoral algorithm for determining MR-based
knee kinematic measurements. Tibial and femoral
coordinate systems were established from bone
segmentations and used to establish coordinate systems
to measure anterior tibial translation and internal
tibial rotation. Using this novel method, knee MR images
from five subjects were segmented by two independent
researchers. Intra-class correlation coefficient
measurements exhibited excellent inter-user and
intra-user reliability of this combined registration
method over a tibial only based approach.
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