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Conference Paper: High frame rate velocity-coded speckle imaging platform for coherent blood flow visualization

TitleHigh frame rate velocity-coded speckle imaging platform for coherent blood flow visualization
Authors
Issue Date2012
PublisherAcoustical Society of America. The Journal's web site is located at http://asa.aip.org/jasa.html
Citation
The 163rd Meeting of the Acoustical Society of America (ASA 2012), Hong Kong, 13-18 May 2012. In Journal of the Acoustical Society of America, 2012, v. 131 n. 4, pt. 2, p. 3288 How to Cite?
AbstractNon-invasive imaging of blood flow at over 100 fps (i.e. beyond video display range) is known to be of clinical interest given that such a high frame rate is essential for coherent visualization of complex hemodynamic events like flow turbulence. From a technical standpoint, getting into this frame rate range has became possible with the advent of broad-view ultrasound imaging paradigms that can track motion over an entire field-of-view using few pulse-echo firings. Leveraging on an imaging paradigm known as plane wave excitation, a novel high-frame-rate flow visualization technique has been developed to depict both blood speckle motion (using B-flow imaging principles) and flow velocities (using conventional color flow imaging principles). Experimental demonstration of this method has been carried out using a channel-domain research platform that supports real-time pre-beamformed data acquisition (SonixDAQ) and a high-throughput processing engine that is based upon graphical processing unit technology (developed in-house by the authors). In a case with a 417 fps frame rate (based on 5000 Hz pulse repetition frequency and slow-time ensemble size of 12), results show that high-frame-rate velocity-coded speckle imaging can more coherently trace fast-moving blood flow than conventional color flow imaging. Acknowledgement: Research Grants Council of Hong Kong (GRF 785811M)
DescriptionSession 2aBA - Biomedical Acoustics: Biomedical Ultrasound Imaging Instrumentation: no. 2aBA1 (Invited Paper)
Persistent Identifierhttp://hdl.handle.net/10722/165167
ISSN
2015 Impact Factor: 1.572
2015 SCImago Journal Rankings: 0.938

 

DC FieldValueLanguage
dc.contributor.authorYu, ACHen_US
dc.contributor.authorYiu, BYSen_US
dc.date.accessioned2012-09-20T08:15:57Z-
dc.date.available2012-09-20T08:15:57Z-
dc.date.issued2012en_US
dc.identifier.citationThe 163rd Meeting of the Acoustical Society of America (ASA 2012), Hong Kong, 13-18 May 2012. In Journal of the Acoustical Society of America, 2012, v. 131 n. 4, pt. 2, p. 3288en_US
dc.identifier.issn0001-4966-
dc.identifier.urihttp://hdl.handle.net/10722/165167-
dc.descriptionSession 2aBA - Biomedical Acoustics: Biomedical Ultrasound Imaging Instrumentation: no. 2aBA1 (Invited Paper)-
dc.description.abstractNon-invasive imaging of blood flow at over 100 fps (i.e. beyond video display range) is known to be of clinical interest given that such a high frame rate is essential for coherent visualization of complex hemodynamic events like flow turbulence. From a technical standpoint, getting into this frame rate range has became possible with the advent of broad-view ultrasound imaging paradigms that can track motion over an entire field-of-view using few pulse-echo firings. Leveraging on an imaging paradigm known as plane wave excitation, a novel high-frame-rate flow visualization technique has been developed to depict both blood speckle motion (using B-flow imaging principles) and flow velocities (using conventional color flow imaging principles). Experimental demonstration of this method has been carried out using a channel-domain research platform that supports real-time pre-beamformed data acquisition (SonixDAQ) and a high-throughput processing engine that is based upon graphical processing unit technology (developed in-house by the authors). In a case with a 417 fps frame rate (based on 5000 Hz pulse repetition frequency and slow-time ensemble size of 12), results show that high-frame-rate velocity-coded speckle imaging can more coherently trace fast-moving blood flow than conventional color flow imaging. Acknowledgement: Research Grants Council of Hong Kong (GRF 785811M)-
dc.languageengen_US
dc.publisherAcoustical Society of America. The Journal's web site is located at http://asa.aip.org/jasa.html-
dc.relation.ispartofJournal of the Acoustical Society of Americaen_US
dc.rightsJournal of the Acoustical Society of America. Copyright © Acoustical Society of America.-
dc.rightsCopyright 2012 Acoustical Society of America. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the Acoustical Society of America. The following article appeared in Journal of the Acoustical Society of America, 2012, v. 131 n. 4, pt. 2, p. 3288 and may be found at http://dx.doi.org.eproxy1.lib.hku.hk/10.1121/1.4708293-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.titleHigh frame rate velocity-coded speckle imaging platform for coherent blood flow visualizationen_US
dc.typeConference_Paperen_US
dc.identifier.emailYu, ACH: alfred.yu@hku.hken_US
dc.identifier.emailYiu, BYS: bysyiu@hku.hken_US
dc.identifier.authorityYu, ACH=rp00657en_US
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1121/1.4708293-
dc.identifier.hkuros206830en_US
dc.identifier.volume131-
dc.identifier.issue4, pt. 2-
dc.identifier.spage3288-
dc.identifier.epage3288-
dc.publisher.placeUnited States-

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