File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Effect of tuning capacitor placement on mutual coupling for MRI array coils

TitleEffect of tuning capacitor placement on mutual coupling for MRI array coils
Authors
KeywordsCapacitor placement
Coil array
Coupling
Coupling coefficient
EM field
Resonant frequency
Issue Date2006
PublisherJohn Wiley & Sons, Inc. The Journal's web site is located at http://www.interscience.wiley.com/jpages/1043-7347:1/
Citation
Concepts In Magnetic Resonance Part B: Magnetic Resonance Engineering, 2006, v. 29 n. 1, p. 50-54 How to Cite?
AbstractMutual coupling is an important issue in RF coil array design for MRI. In this study, the dependence of mutual coupling behavior among RF coil array elements on the tuning capacitor placement is specially investigated at different field strengths. For phased arrays with different tuning capacitor configurations, the degree of mutual coupling is estimated by measuring parameters S11 and S12 using Advanced Design System (ADS) simulation and bench measurements. The simulation agrees well with experiment results and shows that the mutual coupling behavior of different configurations varies notably with the resonant frequency. Specifically, at frequencies lower than 64 MHz, the placement of one or two concentrated capacitors suffers less mutual coupling than that of four evenly distributed capacitors around the coil loop; whereas at frequencies higher than 128 MHz, the opposite is observed. This interesting phenomenon provides guidance on minimizing the mutual coupling for coil array design. © 2006 Wiley Periodicals, Inc.
Persistent Identifierhttp://hdl.handle.net/10722/73855
ISSN
2015 Impact Factor: 0.762
2015 SCImago Journal Rankings: 0.278
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorWei, Jen_HK
dc.contributor.authorYuan, Jen_HK
dc.contributor.authorShen, GXen_HK
dc.date.accessioned2010-09-06T06:55:25Z-
dc.date.available2010-09-06T06:55:25Z-
dc.date.issued2006en_HK
dc.identifier.citationConcepts In Magnetic Resonance Part B: Magnetic Resonance Engineering, 2006, v. 29 n. 1, p. 50-54en_HK
dc.identifier.issn1552-5031en_HK
dc.identifier.urihttp://hdl.handle.net/10722/73855-
dc.description.abstractMutual coupling is an important issue in RF coil array design for MRI. In this study, the dependence of mutual coupling behavior among RF coil array elements on the tuning capacitor placement is specially investigated at different field strengths. For phased arrays with different tuning capacitor configurations, the degree of mutual coupling is estimated by measuring parameters S11 and S12 using Advanced Design System (ADS) simulation and bench measurements. The simulation agrees well with experiment results and shows that the mutual coupling behavior of different configurations varies notably with the resonant frequency. Specifically, at frequencies lower than 64 MHz, the placement of one or two concentrated capacitors suffers less mutual coupling than that of four evenly distributed capacitors around the coil loop; whereas at frequencies higher than 128 MHz, the opposite is observed. This interesting phenomenon provides guidance on minimizing the mutual coupling for coil array design. © 2006 Wiley Periodicals, Inc.en_HK
dc.languageengen_HK
dc.publisherJohn Wiley & Sons, Inc. The Journal's web site is located at http://www.interscience.wiley.com/jpages/1043-7347:1/en_HK
dc.relation.ispartofConcepts in Magnetic Resonance Part B: Magnetic Resonance Engineeringen_HK
dc.rightsConcepts in Magnetic Resonance Part B: Magnetic Resonance Engineering. Copyright © John Wiley & Sons, Inc.en_HK
dc.subjectCapacitor placementen_HK
dc.subjectCoil arrayen_HK
dc.subjectCouplingen_HK
dc.subjectCoupling coefficienten_HK
dc.subjectEM fielden_HK
dc.subjectResonant frequencyen_HK
dc.titleEffect of tuning capacitor placement on mutual coupling for MRI array coilsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1552-5031&volume=29B 1&spage=50&epage=54&date=2006&atitle=Effect+of+Tuning+Capacitor+Placement+on+Mutual+Coupling+for+MRI+Array+Coilsen_HK
dc.identifier.emailShen, GX: gxshen@eee.hku.hken_HK
dc.identifier.authorityShen, GX=rp00166en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1002/cmr.b.20056en_HK
dc.identifier.scopuseid_2-s2.0-33644919383en_HK
dc.identifier.hkuros121246en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33644919383&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume29en_HK
dc.identifier.issue1en_HK
dc.identifier.spage50en_HK
dc.identifier.epage54en_HK
dc.identifier.isiWOS:000235523200006-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridWei, J=12780903400en_HK
dc.identifier.scopusauthoridYuan, J=35788305600en_HK
dc.identifier.scopusauthoridShen, GX=7401967224en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats