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Article: Experimentally verified, theoretical design of dual-tuned, low-pass birdcage radiofrequency resonators for magnetic resonance imaging and magnetic resonance spectroscopy of human brain at 3.0 Tesla

TitleExperimentally verified, theoretical design of dual-tuned, low-pass birdcage radiofrequency resonators for magnetic resonance imaging and magnetic resonance spectroscopy of human brain at 3.0 Tesla
Authors
Issue Date1999
PublisherJohn Wiley & Sons, Inc. The Journal's web site is located at http://www.interscience.wiley.com/jpages/0740-3194/
Citation
Magnetic Resonance in Medicine, 1999, v. 41 n. 2, p. 268-275 How to Cite?
AbstractA new theoretical method is presented for designing frequency responses of double-tuned, low-pass birdcage coils. This method is based on Kirchhoff's equations through a nonsymmetric matrix algorithm and extended through a modification of the corresponding eigenvalue system from a single-tuned mode. Designs from this method are verified for sodium/proton, dual-tuned, double-quadrature, low-pass birdcage coils at 1.5 Telsa and 3.0 Tesla and then are used to design dual-tuned, double-quadrature, lithium/proton and phosphorus/proton birdcage coils for 3.0 Tesla. All frequencies show experimental deviations of less than 3% from theory under unloaded conditions. The frequency shifts caused by loading and radiofrequency shielding are less than 1 MHz and can be compensated readily by adjustment of variable capacitors. Applications to human neuroimaging and spectroscopy are demonstrated.Magn Reson Med 41:268–275, 1999. © 1999 Wiley-Liss, Inc.
Persistent Identifierhttp://hdl.handle.net/10722/73552
ISSN
2015 Impact Factor: 3.782
2015 SCImago Journal Rankings: 2.197

 

DC FieldValueLanguage
dc.contributor.authorShen, GX-
dc.contributor.authorWu, JF-
dc.contributor.authorBoada, FE-
dc.contributor.authorThulborn, KR-
dc.date.accessioned2010-09-06T06:52:27Z-
dc.date.available2010-09-06T06:52:27Z-
dc.date.issued1999-
dc.identifier.citationMagnetic Resonance in Medicine, 1999, v. 41 n. 2, p. 268-275-
dc.identifier.issn0740-3194-
dc.identifier.urihttp://hdl.handle.net/10722/73552-
dc.description.abstractA new theoretical method is presented for designing frequency responses of double-tuned, low-pass birdcage coils. This method is based on Kirchhoff's equations through a nonsymmetric matrix algorithm and extended through a modification of the corresponding eigenvalue system from a single-tuned mode. Designs from this method are verified for sodium/proton, dual-tuned, double-quadrature, low-pass birdcage coils at 1.5 Telsa and 3.0 Tesla and then are used to design dual-tuned, double-quadrature, lithium/proton and phosphorus/proton birdcage coils for 3.0 Tesla. All frequencies show experimental deviations of less than 3% from theory under unloaded conditions. The frequency shifts caused by loading and radiofrequency shielding are less than 1 MHz and can be compensated readily by adjustment of variable capacitors. Applications to human neuroimaging and spectroscopy are demonstrated.Magn Reson Med 41:268–275, 1999. © 1999 Wiley-Liss, Inc.-
dc.languageeng-
dc.publisherJohn Wiley & Sons, Inc. The Journal's web site is located at http://www.interscience.wiley.com/jpages/0740-3194/-
dc.relation.ispartofMagnetic Resonance in Medicine-
dc.rightsMagnetic Resonance in Medicine. Copyright © John Wiley & Sons, Inc.-
dc.rightsSpecial Statement for Preprint only Before publication: 'This is a preprint of an article accepted for publication in [The Journal of Pathology] Copyright © ([year]) ([Pathological Society of Great Britain and Ireland])'. After publication: the preprint notice should be amended to follows: 'This is a preprint of an article published in [include the complete citation information for the final version of the Contribution as published in the print edition of the Journal]' For Cochrane Library/ Cochrane Database of Systematic Reviews, add statement & acknowledgement : ‘This review is published as a Cochrane Review in the Cochrane Database of Systematic Reviews 20XX, Issue X. Cochrane Reviews are regularly updated as new evidence emerges and in response to comments and criticisms, and the Cochrane Database of Systematic Reviews should be consulted for the most recent version of the Review.’ Please include reference to the Review and hyperlink to the original version using the following format e.g. Authors. Title of Review. Cochrane Database of Systematic Reviews 20XX, Issue #. Art. No.: CD00XXXX. DOI: 10.1002/14651858.CD00XXXX (insert persistent link to the article by using the URL: http://dx.doi.org/10.1002/14651858.CD00XXXX) (This statement should refer to the most recent issue of the Cochrane Database of Systematic Reviews in which the Review published.)-
dc.titleExperimentally verified, theoretical design of dual-tuned, low-pass birdcage radiofrequency resonators for magnetic resonance imaging and magnetic resonance spectroscopy of human brain at 3.0 Tesla-
dc.typeArticle-
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0740-3194&volume=41&spage=168&epage=175&date=1999&atitle=An+experimentally+verified+theoretical+design+of+dual-tuned,+low-pass+birdcage+RF+resonators+for+MRI+and+MRS+of+humans+brain+at+3.0+teslaen_HK
dc.identifier.emailShen, GX: gxshen@eee.hku.hk-
dc.identifier.authorityShen, GX=rp00166-
dc.identifier.doi10.1002/(SICI)1522-2594(199902)41:2<268::AID-MRM9>3.0.CO;2-G-
dc.identifier.pmid10080273-
dc.identifier.scopuseid_2-s2.0-0032966322-
dc.identifier.hkuros52354-
dc.identifier.volume41-
dc.identifier.issue2-
dc.identifier.spage268-
dc.identifier.epage275-
dc.publisher.placeNew York, United States-

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