New anatomical landmarks to study the relationship between fetal lung area and thoracic circumference by three-dimensional ultrasonography

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dc.contributor.authorWerneck Britto, Ingrid Schwach
dc.contributor.authorTedesco, Giselle Darahem
dc.contributor.authorSilva Herbst, Sandra Rejane
dc.contributor.authorSilva Bussamra, Luiz Claudio [UNIFESP]
dc.contributor.authorAndrade, Fernando Moreira de
dc.contributor.authorAraujo Junior, Edward [UNIFESP]
dc.contributor.authorMachado Nardozza, Luciano Marcondes
dc.contributor.authorRuano, Rodrigo
dc.contributor.authorMoron, Antonio Fernandes [UNIFESP]
dc.contributor.authorAoki, Tsutomu
dc.contributor.institutionMed Sci Coll Santa Casa São Paulo FCMSCSP
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.contributor.institutionBaylor Coll Med
dc.date.accessioned2016-01-24T14:27:53Z
dc.date.available2016-01-24T14:27:53Z
dc.date.issued2012-10-01
dc.description.abstractObjective: To evaluate the relation between total lung area (TLA) and thoracic circumference (TC) ratio by three-dimensional (3D) ultrasonography applying new anatomical landmarks as the fetal aorta and inferior angle of the scapula. Methods: A longitudinal prospective study was conducted with 56 uncomplicated pregnancies between 24 and 32 weeks of gestation. Polynomial regressions were used to evaluate the correlation between TC and gestational age (GA) as well as TC and estimated fetal weight (EFW). A simple linear regression was used to evaluate the correlation between TLA and Total thoracic area (TTA) and GA. the intraclass correlation coefficient (ICC) was used to assess the intra and interobserver variability. Results: 127 examinations were performed. TC values ranged from 150 to 174 mm (mean 166 mm) at 24 weeks and 215-248 mm (mean 231 mm) at 32 weeks. the TLA/TC ratio ranged from a mean of 0.64 at 24 weeks (range 0.56-0.70) to 0.90 at 32 weeks gestation (range 0.79-1.01). the intraobserver variability using the ICC was of 0.919 for TC; 0.916 for TTA; 0.860 for right lung area (RLA) and 0.910 for left lung area (LLA). Interobserver reproducibility was with an ICC of 0.970 for TC; 0.984 for RLA and 0.910 for LLA. Conclusions: Measurement of fetal TC and the relationship between TLA and TC by 3D-ultrasonography applying new anatomical landmarks shows good reproducibility and allows a new assessment of thoracic and lung growth.en
dc.description.affiliationMed Sci Coll Santa Casa São Paulo FCMSCSP, Dept Obstet & Gynecol, São Paulo, Brazil
dc.description.affiliationSão Paulo Fed Univ UNIFESP, Dept Obstet, São Paulo, Brazil
dc.description.affiliationBaylor Coll Med, Texas Childrens Fetal Ctr, Houston, TX 77030 USA
dc.description.affiliationBaylor Coll Med, Dept Obstet & Gynecol, Houston, TX 77030 USA
dc.description.affiliationUnifespSão Paulo Fed Univ UNIFESP, Dept Obstet, São Paulo, Brazil
dc.description.sourceWeb of Science
dc.format.extent1927-1932
dc.identifierhttp://dx.doi.org/10.3109/14767058.2012.667176
dc.identifier.citationJournal of Maternal-fetal & Neonatal Medicine. London: Informa Healthcare, v. 25, n. 10, p. 1927-1932, 2012.
dc.identifier.doi10.3109/14767058.2012.667176
dc.identifier.issn1476-7058
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/35403
dc.identifier.wosWOS:000308953200020
dc.language.isoeng
dc.publisherInforma Healthcare
dc.relation.ispartofJournal of Maternal-fetal & Neonatal Medicine
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.rights.licensehttp://informahealthcare.com/userimages/ContentEditor/1255620309227/Copyright_And_Permissions.pdf
dc.subjectFetal lung areaen
dc.subjectfetal thoracic circumferenceen
dc.subjectmultiplanar modeen
dc.subjectreference intervalsen
dc.subjectthree-dimensional ultrasonographyen
dc.titleNew anatomical landmarks to study the relationship between fetal lung area and thoracic circumference by three-dimensional ultrasonographyen
dc.typeinfo:eu-repo/semantics/article
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