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

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

Autor Machado Nardozza, Luciano Marcondes Autor UNIFESP Google Scholar
Rolo, Liliam Cristine Autor UNIFESP Google Scholar
Araujo Junior, Edward Autor UNIFESP Google Scholar
Nowak, Paulo Martin Autor UNIFESP Google Scholar
Bortoletti Filho, Joao Autor UNIFESP Google Scholar
Moron, Antonio Fernandes Autor UNIFESP Google Scholar
Instituição Universidade Federal de São Paulo (UNIFESP)
Resumo Objective. 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.
Palavra-chave First trimester
gestational sac
volume measurement
three-dimensional imaging
VOCAL
Idioma Inglês
Data de publicação 2010-03-01
Publicado em Acta Obstetricia Et Gynecologica Scandinavica. Oslo: Taylor & Francis As, v. 89, n. 3, p. 328-334, 2010.
ISSN 0001-6349 (Sherpa/Romeo, fator de impacto)
Publicador Taylor & Francis As
Extensão 328-334
Fonte http://dx.doi.org/10.3109/00016340903508643
Direito de acesso Acesso restrito
Tipo Artigo
Web of Science WOS:000275154100007
Endereço permanente http://repositorio.unifesp.br/handle/11600/32376

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