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Fast backprojection-based reconstruction of spectral-spatial EPR images from projections with the constant sweep of a magnetic field

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Title: Fast backprojection-based reconstruction of spectral-spatial EPR images from projections with the constant sweep of a magnetic field
Authors: Komarov, Denis A. Browse this author
Hirata, Hiroshi Browse this author →KAKEN DB
Keywords: 4D EPR imaging
Spectral-spatial EPR
Image reconstruction
Backprojection
Issue Date: Aug-2017
Publisher: Elsevier
Journal Title: Journal of magnetic resonance
Volume: 281
Start Page: 44
End Page: 50
Publisher DOI: 10.1016/j.jmr.2017.05.005
PMID: 28549338
Abstract: In this paper, we introduce a procedure for the reconstruction of spectral-spatial EPR images using projections acquired with the constant sweep of a magnetic field. The application of a constant field-sweep and a predetermined data sampling rate simplifies the requirements for EPR imaging instrumentation and facilitates the backprojection-based reconstruction of spectral-spatial images. The proposed approach was applied to the reconstruction of a four-dimensional numerical phantom and to actual spectral-spatial EPR measurements. Image reconstruction using projections with a constant field sweep was three times faster than the conventional approach with the application of a pseudo-angle and a scan range that depends on the applied field gradient. Spectral-spatial EPR imaging with a constant field-sweep for data acquisition only slightly reduces the signal-to-noise ratio or functional resolution of the resultant images and can be applied together with any common backprojection-based reconstruction algorithm. (C) 2017 Elsevier Inc. All rights reserved.
Rights: ©2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
http://creativecommons.org/licenses/by-nc-nd/4.0/
Type: article (author version)
URI: http://hdl.handle.net/2115/75090
Appears in Collections:情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 平田 拓

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