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Conference Paper: Transit time broadening: A pulsed Doppler ultrasound perspective

TitleTransit time broadening: A pulsed Doppler ultrasound perspective
Authors
KeywordsDoppler Ultrasound
Range Gate
Transit Time Broadening
Issue Date2004
Citation
Proceedings - Ieee Ultrasonics Symposium, 2004, v. 3, p. 2113-2116 How to Cite?
AbstractMany studies on transit time broadening have been performed to characterize its effect on the Doppler spectrum. However, the dependence of transit time broadening on an important pulsed Doppler ultrasound parameter - the range gate used for depth localization - has not been rigorously addressed. The purpose of this paper is to provide an analysis of how the range gate may contribute to transit time broadening from a pulsed Doppler perspective. Our analysis and simulation results show that the range gate can contribute to transit time broadening at small beam-flow angles. In particular, at such angles, the spectral broadening bandwidth is dependent on the effective axial length of the sample volume. On the other hand, at higher beam-flow angles, the spectral broadening bandwidth is dependent on ultrasound beam parameters such as focal length and aperture size: a finding that is consistent with previous studies. Our analysis also shows that there exists a transition beam-flow angle at which the parameters governing transit time broadening undergo a significant change. © 2004 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/158418
ISSN
References

 

DC FieldValueLanguage
dc.contributor.authorYu, ACHen_US
dc.contributor.authorSteinman, AHen_US
dc.contributor.authorLui, EYLen_US
dc.contributor.authorCobbold, RSCen_US
dc.date.accessioned2012-08-08T08:59:31Z-
dc.date.available2012-08-08T08:59:31Z-
dc.date.issued2004en_US
dc.identifier.citationProceedings - Ieee Ultrasonics Symposium, 2004, v. 3, p. 2113-2116en_US
dc.identifier.issn1051-0117en_US
dc.identifier.urihttp://hdl.handle.net/10722/158418-
dc.description.abstractMany studies on transit time broadening have been performed to characterize its effect on the Doppler spectrum. However, the dependence of transit time broadening on an important pulsed Doppler ultrasound parameter - the range gate used for depth localization - has not been rigorously addressed. The purpose of this paper is to provide an analysis of how the range gate may contribute to transit time broadening from a pulsed Doppler perspective. Our analysis and simulation results show that the range gate can contribute to transit time broadening at small beam-flow angles. In particular, at such angles, the spectral broadening bandwidth is dependent on the effective axial length of the sample volume. On the other hand, at higher beam-flow angles, the spectral broadening bandwidth is dependent on ultrasound beam parameters such as focal length and aperture size: a finding that is consistent with previous studies. Our analysis also shows that there exists a transition beam-flow angle at which the parameters governing transit time broadening undergo a significant change. © 2004 IEEE.en_US
dc.languageengen_US
dc.relation.ispartofProceedings - IEEE Ultrasonics Symposiumen_US
dc.subjectDoppler Ultrasounden_US
dc.subjectRange Gateen_US
dc.subjectTransit Time Broadeningen_US
dc.titleTransit time broadening: A pulsed Doppler ultrasound perspectiveen_US
dc.typeConference_Paperen_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1109/ULTSYM.2004.1418254en_US
dc.identifier.scopuseid_2-s2.0-21644442938en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-21644442938&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume3en_US
dc.identifier.spage2113en_US
dc.identifier.epage2116en_US
dc.publisher.placeUnited Statesen_US

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