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Multiresolution Spline-Based 3D/2D Registration of CT Volume and C-Arm Images for Computer-Assisted Surgery

S. Jonić, P. Thévenaz, M. Unser

Proceedings of the SPIE International Symposium on Medical Imaging: Image Processing (MI'01), San Diego CA, USA, February 17-22, 2001, vol. 4322, part II, pp. 1101-1109.


We propose an algorithm for aligning a preoperative computed tomography (CT) volume and intraoperative C-arm images, with applications in computer-assisted spinal surgery. Our three-dimensional (3D)/two-dimensional (2D) registration algorithm is based on splines and is tuned to a multiresolution strategy. Its goal is to establish the mutual relations of locations in the real-world scene to locations in the 3D CT and inthe 2D C-arm images. The principle of the solution is to simulate a series of C-arm images, using CT data only. Each numerical simulation of a C-arm image is defined by its pose. Our registration algorithm then adjusts this pose until the given C-arm projections and the simulated projections exhibit the greatest degree of similarity. We show the performance of the algorithm for the experiments in a controlled environment which allows for an objective validation of the quality ofour algorithm. For each of 100 randomly generated disturbances around the optimum solution, the 3D/2D registration algorithm was successful and resulted in image registration with subpixel error.

@INPROCEEDINGS(http://bigwww.epfl.ch/publications/jonic0101.html,
AUTHOR="Joni{\'{c}}, S. and Th{\'{e}}venaz, P. and Unser, M.",
TITLE="Multiresolution Spline-Based {3D/2D} Registration of {CT}
	Volume and {C}-Arm Images for Computer-Assisted Surgery",
BOOKTITLE="Progress in Biomedical Optics and Imaging, vol. 2, no.
	27",
YEAR="2001",
editor="Sonka, M. and Hanson, K.M.",
volume="4322",
series="Proceedings of the {SPIE} International Symposium on Medical
	Imaging: {I}mage Processing ({MI'01})",
pages="1101--1109",
address="San Diego CA, USA",
month="February 19-22,",
organization="",
publisher="",
note="Part {II}")

© 2001 SPIE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from SPIE. This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.
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