Assessing repeatability of 3D Doppler indices obtained by static 3D and STIC power Doppler: a combined in-vivo/in-vitro flow phantom study

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dc.contributor.authorMiyague, A. H.
dc.contributor.authorRaine-Fenning, N. J.
dc.contributor.authorPolanski, L.
dc.contributor.authorMartinez, Luís Henrique [UNIFESP]
dc.contributor.authorAraujo Junior, Edward [UNIFESP]
dc.contributor.authorPavan, T. Z.
dc.contributor.authorMartins, W. P.
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUltrasonog & Retraining Med Sch Ribeirao Preto EU
dc.contributor.institutionUniv Nottingham
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.date.accessioned2016-01-24T14:34:36Z
dc.date.available2016-01-24T14:34:36Z
dc.date.issued2013-11-01
dc.description.abstractObjectivesTo compare the variability in vascularization flow index (VFI) seen in serial acquisitions obtained using spatiotemporal image correlation (STIC) and using conventional static three-dimensional (3D) power Doppler (PD), for both in-vitro and in-vivo models, and to evaluate whether the curves formed by VFI values obtained from successive frames' in a STIC dataset are consistent and resemble the waveforms obtained by spectral Doppler analysis.MethodsThe study was divided into two parts: in the first part (the in-vitro model) we scanned a flow phantom, while in the second part (the in-vivo model) we scanned a common carotid artery. Conventional static 3D and STIC-PD datasets were alternately acquired from these two models. VFI values were assessed from 0.38-cm(3) spherical samples of the main flow region in the static 3D datasets and in every frame of the STIC datasets. the variance of the minimum, mean and maximum VFI values from each STIC dataset was compared with the variance of VFI values from the static 3D datasets.ResultsTen static 3D and 10 STIC datasets were acquired from each model. Analysis of the in-vitro and in-vivo models showed a significant reduction in the variance of VFI values obtained using STIC as compared to static datasets. Additionally, we observed that the curves formed by VFI values obtained from successive frames in each STIC dataset were consistent across different datasets and that they resembled the waveforms obtained by spectral Doppler in both models.Conclusions3D-PD indices derived from STIC are more stable than those obtained from conventional static 3D-PD datasets. the curves of VFI throughout a reconstructed cardiac cycle using STIC are repeatable and resemble those obtained by spectral Doppler analysis of the vessel. Copyright (c) 2013 ISUOG. Published by John Wiley & Sons Ltd.en
dc.description.affiliationUniv São Paulo FMRP USP, Dept Obstet & Gynecol, Med Sch Ribeirao Preto, Ribeirao Preto, Brazil
dc.description.affiliationUltrasonog & Retraining Med Sch Ribeirao Preto EU, Ribeirao Preto, Brazil
dc.description.affiliationUniv Nottingham, Sch Clin Sci, Div Obstet & Gynaecol, Nottingham NG7 2RD, England
dc.description.affiliationSão Paulo Fed Univ UNIFESP, Dept Obstet, São Paulo, Brazil
dc.description.affiliationUniv São Paulo FFCLRP USP, Dept Phys, Sch Philosophy Sci & Letters Ribeirao Preto, Ribeirao Preto, Brazil
dc.description.affiliationUnifespSão Paulo Fed Univ UNIFESP, Dept Obstet, São Paulo, Brazil
dc.description.sourceWeb of Science
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipHospital das Clinicas da Faculdade de Medicina de Ribeirao Preto/USP, Brazil
dc.description.sponsorshipSão Paulo Federal University, Brazil
dc.description.sponsorshipUniversity of Nottingham, UK
dc.format.extent571-576
dc.identifierhttp://dx.doi.org/10.1002/uog.12419
dc.identifier.citationUltrasound in Obstetrics & Gynecology. Hoboken: Wiley-Blackwell, v. 42, n. 5, p. 571-576, 2013.
dc.identifier.doi10.1002/uog.12419
dc.identifier.issn0960-7692
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/36888
dc.identifier.wosWOS:000326165700013
dc.language.isoeng
dc.publisherWiley-Blackwell
dc.relation.ispartofUltrasound in Obstetrics & Gynecology
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dc.subjectDoppler ultrasonographyen
dc.subjectimagingen
dc.subjectreproducibilityen
dc.subjectspatiotemporal image correlationen
dc.subjectthree-dimensionalen
dc.titleAssessing repeatability of 3D Doppler indices obtained by static 3D and STIC power Doppler: a combined in-vivo/in-vitro flow phantom studyen
dc.typeinfo:eu-repo/semantics/article
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