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Application of Proximal Alternating Linearized Minimization (PALM) and inertial PALM to dynamic 3D CT

Djurabekova, N; Goldberg, A; Hauptmann, A; Hawkes, D; Long, G; Lucka, F; Betcke, M; (2019) Application of Proximal Alternating Linearized Minimization (PALM) and inertial PALM to dynamic 3D CT. In: Proceedings of SPIE - The International Society for Optical Engineering. SPIE: Philadelphia, United States. Green open access

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Abstract

The foot and ankle is a complex structure consisting of 28 bones and 30 joints that changes from being completely mobile when positioning the foot on the floor to a rigid closed pack position during propulsion such as when running or jumping. An understanding of this complex structure has largely been derived from cadaveric studies. In vivo studies have largely relied on skin surface markers and multi-camera systems that are unable to differentiate small motions between the bones of the foot. MRI and CT based studies have struggled to interpret functional weight bearing motion as imaging is largely static and non-load bearing. Arthritic diseases of the foot and ankle are treated either by fusion of the joints to remove motion, or joint replacement to retain motion. Until a better understanding of the biomechanics of these joints can be achieved.

Type: Proceedings paper
Title: Application of Proximal Alternating Linearized Minimization (PALM) and inertial PALM to dynamic 3D CT
Event: Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine, 2019
ISBN-13: 9781510628373
Open access status: An open access version is available from UCL Discovery
DOI: 10.1117/12.2534827
Publisher version: https://doi.org/10.1117/12.2534827
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.
Keywords: Cone beam CT, dynamic CT, non-convex optimisation, PALM, iPALM, optical flow regularisation, variational methods
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences
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 > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Surgery and Interventional Sci > Department of Ortho and MSK Science
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Computer Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Med Phys and Biomedical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10085824
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