dc.contributorUniversidade de São Paulo (USP)
dc.contributorUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:47:21Z
dc.date.available2014-05-20T13:47:21Z
dc.date.created2014-05-20T13:47:21Z
dc.date.issued2009-02-01
dc.identifierPlacenta. London: W B Saunders Co Ltd, v. 30, n. 2, p. 142-148, 2009.
dc.identifier0143-4004
dc.identifierhttp://hdl.handle.net/11449/16831
dc.identifier10.1016/j.placenta.2008.11.010
dc.identifierWOS:000263409600005
dc.description.abstractEvaluate the distribution and variation of placental vascular indices according to gestational age and placental volume. From March to November 2007, three-dimensional (3D)-power Doppler ultrasound was performed in 295 normal pregnancies from 12 to 40 weeks of gestation. Using the same preestablished settings for all patients, power Doppler was applied to the placenta and placental Volume was obtained by the rotational technique (VOCAL(TM)). The 3D-power histogram was used to determine the placental vascular indices: vascularization index (VI), flow index (FI) and vascularization-flow index (VFI). The placental vascular indices were then plotted against gestational age and placental volume. All placental vascular indices showed constant distribution throughout gestation. A tendency for a reduction in placental vascular indices with increased placental volume was observed, but was only statistically significant when placental FI was considered (p < 0.05). All placental vascular indices estimated by 3D-power Doppler ultrasonography presented constant distribution throughout gestation, despite the increase in placental volume according to gestational age. (C) 2008 Elsevier Ltd. All rights reserved.
dc.languageeng
dc.publisherW B Saunders Co Ltd
dc.relationPlacenta
dc.relation2.434
dc.relation1,223
dc.rightsAcesso restrito
dc.sourceWeb of Science
dc.subjectPlacenta
dc.subjectUltrasonography
dc.subjectThree-dimensional power
dc.subjectDoppler ultrasonography
dc.subjectPlacental vascularization
dc.titleQuantitative Analysis of Placental Vasculature by Three-Dimensional Power Doppler Ultrasonography in Normal Pregnancies From 12 to 40 Weeks of Gestation
dc.typeArtículos de revistas


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