Polycarpou, I, Soultanidis, G and Tsoumpas, C orcid.org/0000-0002-4971-2477 (2021) Synergistic motion compensation strategies for positron emission tomography when acquired simultaneously with magnetic resonance imaging. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 379 (2204). 20200207. ISSN 1364-503X
Abstract
Subject motion in positron emission tomography (PET) is a key factor that degrades image resolution and quality, limiting its potential capabilities. Correcting for it is complicated due to the lack of sufficient measured PET data from each position. This poses a significant barrier in calculating the amount of motion occurring during a scan. Motion correction can be implemented at different stages of data processing either during or after image reconstruction, and once applied accurately can substantially improve image quality and information accuracy. With the development of integrated PET-MRI (magnetic resonance imaging) scanners, internal organ motion can be measured concurrently with both PET and MRI. In this review paper, we explore the synergistic use of PET and MRI data to correct for any motion that affects the PET images. Different types of motion that can occur during PET-MRI acquisitions are presented and the associated motion detection, estimation and correction methods are reviewed. Finally, some highlights from recent literature in selected human and animal imaging applications are presented and the importance of motion correction for accurate kinetic modelling in dynamic PET-MRI is emphasized.
This article is part of the theme issue ‘Synergistic tomographic image reconstruction: part 2’.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2021 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. |
Keywords: | positron emission tomography and magnetic resonance imaging; resolution; motion correction |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Medicine and Health (Leeds) > School of Medicine (Leeds) > Leeds Institute of Cardiovascular and Metabolic Medicine (LICAMM) > Biomedical Imaging Science Dept (Leeds) |
Funding Information: | Funder Grant number Royal Society IF170011 EPSRC (Engineering and Physical Sciences Research Council) EP/P022200/1/539256 EPSRC (Engineering and Physical Sciences Research Council) Not Known |
Depositing User: | Symplectic Publications |
Date Deposited: | 28 Apr 2021 13:11 |
Last Modified: | 19 Aug 2021 14:23 |
Status: | Published |
Publisher: | The Royal Society |
Identification Number: | 10.1098/rsta.2020.0207 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:173161 |