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Conference Paper: MR imaging of shear waves induced by moving needle

TitleMR imaging of shear waves induced by moving needle
Authors
Chan, QCCLi, GEhman, RLGrimm, RCCao, GLi, RYang, ES
KeywordsAcupuncture
Mr Elastography
Shear Wave
Stiffness
Issue Date2004
Citation
Proceedings Of The Second Iasted International Conference On Biomechanics, 2004, p. 22-24 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 in-vivo studies.
Persistent Identifierhttp://hdl.handle.net/10722/155248
References
References in Scopus

 

DC FieldValueLanguage
dc.contributor.authorChan, QCCen_US
dc.contributor.authorLi, Gen_US
dc.contributor.authorEhman, RLen_US
dc.contributor.authorGrimm, RCen_US
dc.contributor.authorCao, Gen_US
dc.contributor.authorLi, Ren_US
dc.contributor.authorYang, ESen_US
dc.date.accessioned2012-08-08T08:32:32Z-
dc.date.available2012-08-08T08:32:32Z-
dc.date.issued2004en_US
dc.identifier.citationProceedings Of The Second Iasted International Conference On Biomechanics, 2004, p. 22-24en_US
dc.identifier.urihttp://hdl.handle.net/10722/155248-
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 in-vivo studies.en_US
dc.languageengen_US
dc.relation.ispartofProceedings of the Second IASTED International Conference on Biomechanicsen_US
dc.subjectAcupunctureen_US
dc.subjectMr Elastographyen_US
dc.subjectShear Waveen_US
dc.subjectStiffnessen_US
dc.titleMR imaging of shear waves induced by moving needleen_US
dc.typeConference_Paperen_US
dc.identifier.emailYang, ES:esyang@hkueee.hku.hken_US
dc.identifier.authorityYang, ES=rp00199en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-11144325029en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-11144325029&selection=ref&src=s&origin=recordpageen_US
dc.identifier.spage22en_US
dc.identifier.epage24en_US
dc.identifier.scopusauthoridChan, QCC=6602497305en_US
dc.identifier.scopusauthoridLi, G=7407054189en_US
dc.identifier.scopusauthoridEhman, RL=7005436591en_US
dc.identifier.scopusauthoridGrimm, RC=7202638372en_US
dc.identifier.scopusauthoridCao, G=16551864200en_US
dc.identifier.scopusauthoridLi, R=13406618300en_US
dc.identifier.scopusauthoridYang, ES=7202021229en_US

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