A fast and robust technique for 3D-2D registration of CT to single plane X-ray fluoroscopy

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Abstract

The application of 3D-2D image registration can be enormously helpful for different clinical purposes, such as image-guided surgery and the kinematic analysis of bones in knee and ankle joints. A limitation of this approach is the need to recalculate the voxel values in the 3D volume for every iteration of the registration procedure prior to generating a digitally reconstructed radiograph. In this paper we propose a new multi-phase 3D-2D image registration algorithm which uses partial 3D volumes to estimate out-of-plane rotations. In our proposed algorithm, only one full 3D update is used to generate a 2D projection during the registration procedure. Experimental results show that our proposed method can provide a registration accuracy similar to the commonly used approach which employs 3D updates at every iteration. As a result of reducing the number of 3D updates, the proposed approach reduces the time required to carry out the registration by a factor of 10-20 without any accompanying loss of registration accuracy. © 2014 © 2014 Taylor & Francis.

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Haque, M. N., Pickering, M. R., Al Muhit, A., Frater, M. R., Scarvell, J. M., & Smith, P. N. (2014). A fast and robust technique for 3D-2D registration of CT to single plane X-ray fluoroscopy. Computer Methods in Biomechanics and Biomedical Engineering: Imaging and Visualization, 2(2), 76–89. https://doi.org/10.1080/21681163.2013.850447

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