A New Combination of Radio-Frequency Coil Configurations Using High-Permittivity Materials and Inductively Coupled Structures for Ultrahigh-Field Magnetic Resonance Imaging
DC Field | Value | Language |
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dc.contributor.author | Seo, Jeung-Hoon | - |
dc.contributor.author | Jo, Young-Seung | - |
dc.contributor.author | Oh, Chang-Hyun | - |
dc.contributor.author | Chung, Jun-Young | - |
dc.date.accessioned | 2023-01-06T09:40:11Z | - |
dc.date.available | 2023-01-06T09:40:11Z | - |
dc.date.created | 2023-01-04 | - |
dc.date.issued | 2022-11 | - |
dc.identifier.issn | 1424-8220 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/86463 | - |
dc.description.abstract | In ultrahigh-field (UHF) magnetic resonance imaging (MRI) system, the RF power required to excite the nuclei of the target object increases. As the strength of the main magnetic field (B-0 field) increases, the improvement of the RF transmit field (B-1(+) field) efficiency and receive field (B-1(-) field) sensitivity of radio-frequency (RF) coils is essential to reduce their specific absorption rate and power deposition in UHF MRI. To address these problems, we previously proposed a method to simultaneously improve the B-1(+) field efficiency and B-1(-) field sensitivity of 16-leg bandpass birdcage RF coils (BP-BC RF coils) by combining a multichannel wireless RF element (MCWE) and segmented cylindrical high-permittivity material (scHPM) comprising 16 elements in 7.0 T MRI. In this work, we further improved the performance of transmit/receive RF coils. A new combination of RF coil with wireless element and HPM was proposed by comparing the BP-BC RF coil with the MCWE and the scHPM proposed in the previous study and the multichannel RF coils with a birdcage RF coil-type wireless element (BCWE) and the scHPM proposed in this study. The proposed 16-ch RF coils with the BCWE and scHPM provided excellent B-1(+) field efficiency and B-1(-) field sensitivity improvement. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | MDPI | - |
dc.relation.isPartOf | SENSORS | - |
dc.title | A New Combination of Radio-Frequency Coil Configurations Using High-Permittivity Materials and Inductively Coupled Structures for Ultrahigh-Field Magnetic Resonance Imaging | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000887846300001 | - |
dc.identifier.doi | 10.3390/s22228968 | - |
dc.identifier.bibliographicCitation | SENSORS, v.22, no.22 | - |
dc.description.isOpenAccess | Y | - |
dc.identifier.scopusid | 2-s2.0-85142681044 | - |
dc.citation.title | SENSORS | - |
dc.citation.volume | 22 | - |
dc.citation.number | 22 | - |
dc.contributor.affiliatedAuthor | Seo, Jeung-Hoon | - |
dc.contributor.affiliatedAuthor | Jo, Young-Seung | - |
dc.contributor.affiliatedAuthor | Chung, Jun-Young | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | inductively coupled wireless structure | - |
dc.subject.keywordAuthor | high-permittivity material | - |
dc.subject.keywordAuthor | finite-difference time domain method | - |
dc.subject.keywordAuthor | multichannel RF coil | - |
dc.subject.keywordAuthor | birdcage RF coil | - |
dc.subject.keywordAuthor | 7.0 T MRI | - |
dc.subject.keywordPlus | TO-NOISE RATIO | - |
dc.subject.keywordPlus | POWER DEPOSITION | - |
dc.subject.keywordPlus | RF POWER | - |
dc.subject.keywordPlus | ELECTROMAGNETIC-FIELDS | - |
dc.subject.keywordPlus | MULTIPLE-SCLEROSIS | - |
dc.subject.keywordPlus | LESION DETECTION | - |
dc.subject.keywordPlus | ABSORPTION RATE | - |
dc.subject.keywordPlus | SURFACE COILS | - |
dc.subject.keywordPlus | IN-VIVO | - |
dc.subject.keywordPlus | 7T MRI | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Instruments & Instrumentation | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Analytical | - |
dc.relation.journalWebOfScienceCategory | Engineering, Electrical & Electronic | - |
dc.relation.journalWebOfScienceCategory | Instruments & Instrumentation | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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