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Although weightbearing CT scans have become common for assessment of foot and ankle disorders, radiographs are still the standard for imaging the hindfoot. This study assessed the influence of various digitally reconstructed radiograph (DRR) projection views derived from weightbearing CT scans with ...
Mechanical loading plays an important role in maintaining normal cartilage health. On the other hand, abnormal mechanical loading potentially results in cartilage degeneration. However, there is limited data quantifying the in vivo cartilage mechanical strain response during activities of daily livi...
Fragility fractures pose a massive healthcare burden worldwide. Low bone quality is a major determinant of fracture risk. Bone strength, using computed-tomography based subject-specific finite-element (CT-SSFE) analysis, estimates bone quality more accurately than dual-energy X ray absorptiometry ba...
Due to the long term consequences of ACL rupture, including pain, instability, loss of function, and early onset osteoarthritis, injury prevention is of the utmost importance. The efficacy of prevention programs may be enhanced by data quantifying the positions that put the ACL at risk for injury. U...
Dynamic elastography imaging, whether based on Magnetic Resonance or Ultrasound modalities, attempts to reconstruct quantitative maps of the viscoelastic properties of biological tissue, properties that are altered by disease and injury. Reconstruction often assumes isotropy and homogeneity and negl...
Reliable and accurate localization and pose recovery of objects (bones and fiducials) in a high-speed biplanar X-ray system is dependent on an adequate model of the imaging chain. This work investigated the contributions of multiple sources of calibration errors in the chain. The results provided in...
The combination of model-based tracking techniques with biplane fluoroscopy for quantifying in vivo kinematics of various joints has evolved from initial, novel experimental applications, to more recent applications using clinical biplane fluoroscopy systems. The equipment and expertise needed to pe...
Model-based biplanar fluoroscopic bone tracking is a powerful tool for biomechanists seeking to quantify in vivo, functional joint motion. The sizes, shapes, and configurations of the osseous foot and ankle anatomy present a series of unique challenges to obtaining optimal kinematic data with minima...
To investigate how the foot mobility differs between human and African great apes, we compared three-dimensional bone kinematics of cadaver feet under an axial loading using a biplanar X-ray fluoroscopy system. For the visualization and quantification of detailed foot bony movement, a model-based re...
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