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- Title
An Automated Three-Dimensional Bone Pose Tracking Method Using Clinical Interleaved Biplane Fluoroscopy Systems: Application to the Knee.
- Authors
Lin, Cheng-Chung; Lu, Tung-Wu; Li, Jia-Da; Kuo, Mei-Ying; Kuo, Chien-Chun; Hsu, Horng-Chuang
- Abstract
Featured Application: A new fully automated model-based interleaved biplane image tracking scheme in conjunction with clinical asynchronous biplane fluoroscopy was proposed and evaluated for its performance on dynamic tibiofemoral kinematics measurements. The approach may encourage the further use of clinical imaging systems for the noninvasive and precise examination of three-dimensional, dynamic joint functions in clinical practice and extend the application of model-based tracking techniques for orthopedic biomechanical investigations in a budge-efficient way. Model-based tracking of the movement of the tibiofemoral joint via a biplane X-ray imaging system has been commonly used to reproduce its accurate, three-dimensional kinematics. To accommodate the approaches to existing clinical asynchronous biplane fluoroscopy systems and achieve comparable accuracy, this study proposed an automated model-based interleaved biplane fluoroscopy image tracking scheme (MIBFT) by incorporating information of adjacent image frames. The MIBFT was evaluated with a cadaveric study conducted on a knee specimen. The MIBFT reproduced skeletal poses and tibiofemoral kinematics that were in good agreement with the standard reference kinematics provided by an optical motion capture system, in which the root-mean-squared (Rms) errors of the skeletal pose parameters ranged from 0.11 to 0.35 mm in translation and 0.18 to 0.49° in rotation. The influences of rotation speed on the pose errors were below 0.23 mm and 0.26°. The MIBFT-determined bias, precision, and Rms error were comparable to those of the reported model-based tracking techniques using custom-made synchronous biplane fluoroscopy. The results suggested that the further use of the clinical imaging system is feasible for the noninvasive and precise examination of dynamic joint functions and kinematics in clinical practice and biomechanical research.
- Subjects
FLUOROSCOPY; BONES; BIPLANES; POSE estimation (Computer vision); IMAGING systems; X-ray imaging; MOTION capture (Human mechanics)
- Publication
Applied Sciences (2076-3417), 2020, Vol 10, Issue 23, p8426
- ISSN
2076-3417
- Publication type
Article
- DOI
10.3390/app10238426