Magnetic field sensitivity at 7-T using dual-helmholtz transmit-only coil and 12-channel receive-only bended coil
DC Field | Value | Language |
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dc.contributor.author | Kim, Kyoung-Nam | - |
dc.contributor.author | Ryu, Yeunchul | - |
dc.contributor.author | Seo, Jeung-Hoon | - |
dc.contributor.author | Kim, Young-Bo | - |
dc.date.available | 2020-02-27T23:43:52Z | - |
dc.date.created | 2020-02-07 | - |
dc.date.issued | 2016-12 | - |
dc.identifier.issn | 0161-0457 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/7633 | - |
dc.description.abstract | The purpose of this study was to combine a dual-Helmholtz (DH) transmit (Tx)-only coil and 12-channel receive (Rx)-only bended phased array (PA) coil to improve the magnetic flux (|B-1|) sensitivity in the superior-to-inferior (S-I) direction during human brain magnetic resonance imaging (MRI) at 7-T. The proposed coil combination was primarily implemented by electromagnetic (EM) simulation and compared with the 16-leg birdcage coil and 8-channel PA coil, which are generally used for the Tx- and Rx-only modes, respectively. The optimal coil combinations for the proposed structure were determined by |B-1| field calculations using the |B-T(+)| and |B-R(-)| fields, which are respectively the transmit and receive components of the |B-1| field. The coil performance was then evaluated by a bench test and 7-T MRI experiment. The results of the computational calculations indicated that the |B-T(+)| field of the DH coil was distributed similarly to that of the 16-leg birdcage coil despite the fewer conducting legs of the former. However, the 12-channel Rx-only bended PA coil had clearly higher |B-R(-)| profiles compared to the 8-channel PA coil. The results of the 7-T in vivo experiment showed that the proposed combination of the DH Tx-only coil and 12-channel Rx-only bended PA coil had better |B-1| field homogeneity in the sagittal slice as well as higher |B-1| field sensitivity during human brain MRI compared to an 8-channel Rx-only PA coil. SCANNING 38:515-524, (c) 2015 Wiley Periodicals, Inc. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | WILEY-BLACKWELL | - |
dc.relation.isPartOf | SCANNING | - |
dc.subject | TO-NOISE RATIO | - |
dc.subject | PHASED-ARRAY | - |
dc.subject | PET-MRI | - |
dc.subject | BRAIN | - |
dc.subject | SAMPLES | - |
dc.subject | SYSTEM | - |
dc.subject | TESLA | - |
dc.title | Magnetic field sensitivity at 7-T using dual-helmholtz transmit-only coil and 12-channel receive-only bended coil | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000390267000004 | - |
dc.identifier.doi | 10.1002/sca.21290 | - |
dc.identifier.bibliographicCitation | SCANNING, v.38, no.6, pp.515 - 524 | - |
dc.identifier.scopusid | 2-s2.0-84955569281 | - |
dc.citation.endPage | 524 | - |
dc.citation.startPage | 515 | - |
dc.citation.title | SCANNING | - |
dc.citation.volume | 38 | - |
dc.citation.number | 6 | - |
dc.contributor.affiliatedAuthor | Kim, Kyoung-Nam | - |
dc.contributor.affiliatedAuthor | Ryu, Yeunchul | - |
dc.contributor.affiliatedAuthor | Seo, Jeung-Hoon | - |
dc.contributor.affiliatedAuthor | Kim, Young-Bo | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | MRI | - |
dc.subject.keywordAuthor | dual-Helmholtz coil | - |
dc.subject.keywordAuthor | birdcage coil | - |
dc.subject.keywordAuthor | phased array coil | - |
dc.subject.keywordAuthor | bended | - |
dc.subject.keywordAuthor | magnetic flux | - |
dc.subject.keywordPlus | TO-NOISE RATIO | - |
dc.subject.keywordPlus | PHASED-ARRAY | - |
dc.subject.keywordPlus | PET-MRI | - |
dc.subject.keywordPlus | BRAIN | - |
dc.subject.keywordPlus | SAMPLES | - |
dc.subject.keywordPlus | SYSTEM | - |
dc.subject.keywordPlus | TESLA | - |
dc.relation.journalResearchArea | Instruments & Instrumentation | - |
dc.relation.journalResearchArea | Microscopy | - |
dc.relation.journalWebOfScienceCategory | Instruments & Instrumentation | - |
dc.relation.journalWebOfScienceCategory | Microscopy | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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