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Conference Paper: Shear waves induced by moving needle in MR Elastography

TitleShear waves induced by moving needle in MR Elastography
Authors
KeywordsAcupuncture
MR Elastography
Shear wave
Stiffness
Issue Date2004
PublisherIEEE.
Citation
Annual International Conference Of The Ieee Engineering In Medicine And Biology - Proceedings, 2004, v. 26 II, p. 1022-1024 How to Cite?
AbstractMagnetic Resonance Elastography (MRE) is a phase contrast-based method for observing shear wave propagation in a material to determine its stiffness. The objective of this study was to determine whether shear waves suitable for MRE can be induced using a moving acupuncture needle. Tissue-simulating bovine gel phantom and a 0.4mm diameter acupuncture needle were used in the experiment. The results showed that observable shear waves could be induced in the gel phantom by cyclic needle motion. The observed wavelength varied with excitation frequency, as expected. Generating shear waves using moving needles may be a useful tool to study the basic mechanism of acupuncture with MRE. Further study will be conducted to observe the wave motion in inhomogeneous media and acupuncture-induced effects in invivo studies.
Persistent Identifierhttp://hdl.handle.net/10722/45834
ISSN
References

 

DC FieldValueLanguage
dc.contributor.authorChan, QCCen_HK
dc.contributor.authorLi, Gen_HK
dc.contributor.authorEhman, RLen_HK
dc.contributor.authorRossman, PJen_HK
dc.contributor.authorCao, Gen_HK
dc.contributor.authorLi, Ren_HK
dc.contributor.authorYang, ESen_HK
dc.date.accessioned2007-10-30T06:36:34Z-
dc.date.available2007-10-30T06:36:34Z-
dc.date.issued2004en_HK
dc.identifier.citationAnnual International Conference Of The Ieee Engineering In Medicine And Biology - Proceedings, 2004, v. 26 II, p. 1022-1024en_HK
dc.identifier.issn0589-1019en_HK
dc.identifier.urihttp://hdl.handle.net/10722/45834-
dc.description.abstractMagnetic Resonance Elastography (MRE) is a phase contrast-based method for observing shear wave propagation in a material to determine its stiffness. The objective of this study was to determine whether shear waves suitable for MRE can be induced using a moving acupuncture needle. Tissue-simulating bovine gel phantom and a 0.4mm diameter acupuncture needle were used in the experiment. The results showed that observable shear waves could be induced in the gel phantom by cyclic needle motion. The observed wavelength varied with excitation frequency, as expected. Generating shear waves using moving needles may be a useful tool to study the basic mechanism of acupuncture with MRE. Further study will be conducted to observe the wave motion in inhomogeneous media and acupuncture-induced effects in invivo studies.en_HK
dc.format.extent150402 bytes-
dc.format.extent5169 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypetext/plain-
dc.languageengen_HK
dc.publisherIEEE.en_HK
dc.relation.ispartofAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedingsen_HK
dc.rights©2005 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectAcupunctureen_HK
dc.subjectMR Elastographyen_HK
dc.subjectShear waveen_HK
dc.subjectStiffnessen_HK
dc.titleShear waves induced by moving needle in MR Elastographyen_HK
dc.typeConference_Paperen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1557-170X&volume=1&spage=1022&epage=1024&date=2005&atitle=Shear+Waves+Induced+By+Moving+Needle+In+Mr+Elastography.en_HK
dc.identifier.emailYang, ES:esyang@hkueee.hku.hken_HK
dc.identifier.authorityYang, ES=rp00199en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1109/IEMBS.2004.1403336en_HK
dc.identifier.scopuseid_2-s2.0-11144315427en_HK
dc.identifier.hkuros112323-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-11144315427&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume26 IIen_HK
dc.identifier.spage1022en_HK
dc.identifier.epage1024en_HK
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridChan, QCC=6602497305en_HK
dc.identifier.scopusauthoridLi, G=7407054189en_HK
dc.identifier.scopusauthoridEhman, RL=7005436591en_HK
dc.identifier.scopusauthoridRossman, PJ=7003641237en_HK
dc.identifier.scopusauthoridCao, G=16551864200en_HK
dc.identifier.scopusauthoridLi, R=13406618300en_HK
dc.identifier.scopusauthoridYang, ES=7202021229en_HK

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