Comparison of gestational sac volume by 3D-sonography using planimetric, virtual organ computer-aided analysis and extended imaging virtual organ computer-aided analysis methods between 7 and 11 weeks of pregnancy

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dc.contributor.authorMachado Nardozza, Luciano Marcondes [UNIFESP]
dc.contributor.authorRolo, Liliam Cristine [UNIFESP]
dc.contributor.authorAraujo Junior, Edward [UNIFESP]
dc.contributor.authorNowak, Paulo Martin [UNIFESP]
dc.contributor.authorBortoletti Filho, Joao [UNIFESP]
dc.contributor.authorMoron, Antonio Fernandes [UNIFESP]
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.date.accessioned2016-01-24T13:59:27Z
dc.date.available2016-01-24T13:59:27Z
dc.date.issued2010-03-01
dc.description.abstractObjective. To compare different three-dimensional (3D) methods in the assessment of gestational sac volume (GSV). Design. Cross-sectional study involving 74 normal pregnancies between 7 and 11 weeks. Setting. Department of Obstetrics, São Paulo Federal University (UNIFESP). Methods. GSV was measured through 3D ultrasound using the planimetric, virtual organ computer-aided analysis (VOCAL) and extended imaging virtual organ computer-aided analysis (XI VOCAL) methods. the planimetric method used a sequence of adjacent planes that are 3 mm thick. for the VOCAL methods, six adjacent planes and a 30 degrees rotation were used. A total of 15 adjacent planes were used for the XI VOCAL method. Regression models with a determination coefficient (R<SU2</SU) were created to assess the correlation between GSV and gestational age (GA). Intraclass correlation coefficient (ICC) and Bland-Altman graphs were used to assess the correlation between the three methods and ANOVA was used to compare means. Results. All three methods showed a correlation between GSV and GA (R<SU2</SU = 0.65 for XI VOCAL, R<SU2</SU = 0.65 for planimetric and R<SU2</SU = 0.66 for VOCAL). There was a strong correlation between the three methods (XI VOCAL vs. planimetric ICC = 0.995; XI VOCAL vs. VOCAL ICC = 0.998 and planimetric vs. VOCAL ICC = 0.995) without any significant differences according to the Bland-Altman graphs or ANOVA (p < 0.002). Conclusions. the three 3D ultrasound methods used for GSV assessment between 7 and 11 weeks are concordant. These methods can be used interchangeably during the first trimester of pregnancy to measure GSV.en
dc.description.affiliationUniversidade Federal de São Paulo, Dept Obstet, BR-04024002 São Paulo, Brazil
dc.description.affiliationUnifespUniversidade Federal de São Paulo, Dept Obstet, BR-04024002 São Paulo, Brazil
dc.description.sourceWeb of Science
dc.format.extent328-334
dc.identifierhttp://dx.doi.org/10.3109/00016340903508643
dc.identifier.citationActa Obstetricia Et Gynecologica Scandinavica. Oslo: Taylor & Francis As, v. 89, n. 3, p. 328-334, 2010.
dc.identifier.doi10.3109/00016340903508643
dc.identifier.issn0001-6349
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/32376
dc.identifier.wosWOS:000275154100007
dc.language.isoeng
dc.publisherTaylor & Francis As
dc.relation.ispartofActa Obstetricia Et Gynecologica Scandinavica
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.rights.licensehttp://journalauthors.tandf.co.uk/permissions/reusingOwnWork.asp
dc.subjectFirst trimesteren
dc.subjectgestational sacen
dc.subjectvolume measurementen
dc.subjectthree-dimensional imagingen
dc.subjectVOCALen
dc.titleComparison of gestational sac volume by 3D-sonography using planimetric, virtual organ computer-aided analysis and extended imaging virtual organ computer-aided analysis methods between 7 and 11 weeks of pregnancyen
dc.typeinfo:eu-repo/semantics/article
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