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2D-3D motion registration of rigid objects within a soft tissue structure

Djurabekova, N; Goldberg, A; Hawkes, D; Long, G; Lucka, F; Betcke, MM; (2022) 2D-3D motion registration of rigid objects within a soft tissue structure. In: Stayman, JW, (ed.) 7th International Conference on Image Formation in X-Ray Computed Tomography;. SPIE: Baltimore, MA, USA. Green open access

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Abstract

The study of rigid body dynamics in soft tissue is an essential part of orthopaedic imaging. Our focus is the foot and ankle structure, which consists of 28 bones surrounded by a variety of soft tissue such as 30 muscles, numerous ligaments, bursae and nerves. The importance of understanding the involved dynamics is evident by the frequent need to find functional joint replacements to fight diseases such as hindfoot arthritis. We study a simplified problem by constructing a phantom with two”bones” submerged in silicone and a remotely controlled LEGO robot that moves one of the two bones. We perform motion registration by manipulating the bone segmented from an initial static scan and matching its digitally reconstructed radiographs to a sequence of scanned X-ray projections. The registration of the 3D volume to 2D projections requires the right combination of optimization and interpolation to achieve an optimal result. We test four different approaches with the help of the Flexible Algorithms for Image Registration (FAIR) toolbox.

Type: Proceedings paper
Title: 2D-3D motion registration of rigid objects within a soft tissue structure
Event: Seventh International Conference on Image Formation in X-Ray Computed Tomography (ICIFXCT 2022), 2022
Dates: 12 Jun 2022 - 16 Jun 2022
ISBN-13: 9781510656697
Open access status: An open access version is available from UCL Discovery
DOI: 10.1117/12.2647250
Publisher version: https://doi.org/10.1117/12.2647250
Language: English
Additional information: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Surgery and Interventional Sci
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Computer Science
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Surgery and Interventional Sci > Department of Ortho and MSK Science
URI: https://discovery.ucl.ac.uk/id/eprint/10160856
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