Fetal lung volume: comparison by 2D-and 3D-sonography in normal fetuses

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dc.contributor.authorWerneck Britto, Ingrid Schwach
dc.contributor.authorSilva Bussamra, Luiz Claudio de
dc.contributor.authorAraujo Junior, Edward [UNIFESP]
dc.contributor.authorTedesco, Giselle Darahem
dc.contributor.authorMachado Nardozza, Luciano Marcondes [UNIFESP]
dc.contributor.authorMoron, Antonio Fernandes [UNIFESP]
dc.contributor.authorAoki, Tsutomu
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.contributor.institutionMed Sci Coll Santa Casa São Paulo
dc.date.accessioned2016-01-24T13:58:39Z
dc.date.available2016-01-24T13:58:39Z
dc.date.issued2009-09-01
dc.description.abstractTo compare two-dimensional ultrasonography (2D US) and three-dimensional ultrasonography (3D US) in the assessment of normal fetal lung volume.A cross-sectional study was performed involving 50 normal pregnancies at 24-32 weeks' gestation. the following equations were used for lung volume calculation by 2D US: Eq(2D1) = 4.24 + {1.53 x [(area of base of both lungs) x 1/3 (height of right lung)]} and Eq(2D2) = [anteroposterior diameter (X) x transverse diameter (Y) x cranial-caudal diameter (Z) of the right lung x 0.152 + (X') x (Y') x (Z') of the left lung x 0.167]. for 3D US, the virtual organ computer-aided analysis (VOCAL) method was used with a 30A degrees rotation angle and the total lung volume (V3D) was obtained by summing the volumes of each lung. Regression models (R (2)) were devised to assess lung volume evolution over the course of the pregnancy. Pearson's correlation coefficient (r) was used to assess correlation among the techniques, while Friedman's test was used for means comparisons.Strong correlation was observed among the three techniques [V3D vs. Eq(2D2) r = 0.856; V3D vs. Eq(2D1) r = 0.838 and Eq(2D2) vs. Eq(2D1) r = 0.964; all with P < 0.001]. Mean lung volumes were 37.05 +/- A 9.67, 29.79 +/- A 8.79 and 12.67 +/- A 4.12 ml for V3D, Eq(2D1) and Eq(2D2), respectively (P < 0.001).Strong correlation and significant difference was observed among the three techniques of fetal lung volume assessment in normal fetuses.en
dc.description.affiliationUniversidade Federal de São Paulo, Dept Obstet, UNIFESP EPM, São Paulo, Brazil
dc.description.affiliationMed Sci Coll Santa Casa São Paulo, FCMSCSP, Dept Gynecol & Obstet, São Paulo, Brazil
dc.description.affiliationUnifespUniversidade Federal de São Paulo, Dept Obstet, UNIFESP EPM, São Paulo, Brazil
dc.description.sourceWeb of Science
dc.format.extent363-368
dc.identifierhttp://dx.doi.org/10.1007/s00404-008-0908-9
dc.identifier.citationArchives of Gynecology and Obstetrics. Heidelberg: Springer Heidelberg, v. 280, n. 3, p. 363-368, 2009.
dc.identifier.doi10.1007/s00404-008-0908-9
dc.identifier.issn0932-0067
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/31765
dc.identifier.wosWOS:000268293200006
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofArchives of Gynecology and Obstetrics
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.rights.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dc.subjectFetal lung volumeen
dc.subjectTwo-dimensional ultrasounden
dc.subjectThree-dimensional ultrasounden
dc.titleFetal lung volume: comparison by 2D-and 3D-sonography in normal fetusesen
dc.typeinfo:eu-repo/semantics/article
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