Unmatched projector/backprojector pair for demultiplexing in multipinhole emission computed tomography
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Min, Byung Jun | - |
dc.contributor.author | Choi, Yong | - |
dc.contributor.author | Lee, Nam-Yong | - |
dc.contributor.author | Jung, Jin Ho | - |
dc.contributor.author | Hong, Key Jo | - |
dc.contributor.author | Kang, Ji Hoon | - |
dc.contributor.author | Hu, Wei | - |
dc.contributor.author | Lee, Kisung | - |
dc.contributor.author | Ahn, Young Bok | - |
dc.contributor.author | Joung, Jinhun | - |
dc.date.accessioned | 2021-09-07T22:25:13Z | - |
dc.date.available | 2021-09-07T22:25:13Z | - |
dc.date.created | 2021-06-14 | - |
dc.date.issued | 2010-12 | - |
dc.identifier.issn | 0091-3286 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/115191 | - |
dc.description.abstract | Statistically based iterative algorithms such as maximum likelihood-expectation maximization (ML-EM) are used for image reconstruction in single photon emission computed tomography (SPECT). Unmatched projector/backprojector pairs are sometimes used to accelerate the iteration process in the reconstruction algorithm. In this work, we propose and explore the use of an unmatched projector/backprojector pair for demultiplexing in multipinhole SPECT. Several simulations are conducted to evaluate the performance of the proposed method with uniform, hot-rod, and cold-rod phantoms. The proposed method incorporates an unmatched backprojector to utilize selective multiplexed projection data in reconstruction algorithms, while the projector is modeled as accurately as possible to represent realistic imaging geometry and the physical effects of multipinhole SPECT. The root mean square (rms) error and backprojection speed are evaluated to determine an unmatched backprojector. Our results demonstrate that the proposed method provides high-quality multipinhole SPECT images without multiplexing-related artifacts when a well-chosen unmatched backprojector is used. (C) 2010 Society of Photo-Optical Instrumentation Engineers. [DOI: 10.1117/1.3518081] | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS | - |
dc.subject | SMALL ANIMAL SPECT | - |
dc.subject | HIGH-RESOLUTION SPECT | - |
dc.subject | CODED-APERTURE | - |
dc.subject | PINHOLE COLLIMATOR | - |
dc.subject | IMAGE-RECONSTRUCTION | - |
dc.subject | MONTE-CARLO | - |
dc.subject | ANALYTIC DETERMINATION | - |
dc.subject | GAMMA-CAMERA | - |
dc.subject | DETECTOR | - |
dc.subject | SIMULATION | - |
dc.title | Unmatched projector/backprojector pair for demultiplexing in multipinhole emission computed tomography | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Kisung | - |
dc.contributor.affiliatedAuthor | Joung, Jinhun | - |
dc.identifier.doi | 10.1117/1.3518081 | - |
dc.identifier.scopusid | 2-s2.0-79955972270 | - |
dc.identifier.wosid | 000285749600030 | - |
dc.identifier.bibliographicCitation | OPTICAL ENGINEERING, v.49, no.12 | - |
dc.relation.isPartOf | OPTICAL ENGINEERING | - |
dc.citation.title | OPTICAL ENGINEERING | - |
dc.citation.volume | 49 | - |
dc.citation.number | 12 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Optics | - |
dc.relation.journalWebOfScienceCategory | Optics | - |
dc.subject.keywordPlus | SMALL ANIMAL SPECT | - |
dc.subject.keywordPlus | HIGH-RESOLUTION SPECT | - |
dc.subject.keywordPlus | CODED-APERTURE | - |
dc.subject.keywordPlus | PINHOLE COLLIMATOR | - |
dc.subject.keywordPlus | IMAGE-RECONSTRUCTION | - |
dc.subject.keywordPlus | MONTE-CARLO | - |
dc.subject.keywordPlus | ANALYTIC DETERMINATION | - |
dc.subject.keywordPlus | GAMMA-CAMERA | - |
dc.subject.keywordPlus | DETECTOR | - |
dc.subject.keywordPlus | SIMULATION | - |
dc.subject.keywordAuthor | multipinhole collimator | - |
dc.subject.keywordAuthor | demultiplexing | - |
dc.subject.keywordAuthor | system matrix | - |
dc.subject.keywordAuthor | maximum likelihood-expectation maximization | - |
dc.subject.keywordAuthor | image reconstruction | - |
dc.subject.keywordAuthor | tomography | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(02841) 서울특별시 성북구 안암로 14502-3290-1114
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.