Fetal weight estimation by three-dimensional ultrasonography

Authors

  • Alessandra Lourenço Caputo Magalhães Universidade do Estado do Rio de Janeiro
  • Alexandre José Baptista Trajano Universidade do Estado do Rio de Janeiro
  • Nilson Ramires de Jesus Universidade do Estado do Rio de Janeiro
  • Guilherme Ribeiro Ramires de Jesus Universidade do Estado do Rio de Janeiro
  • Dailson Damian da Silveira Pereira Universidade do Estado do Rio de Janeiro
  • Denizar Vianna de Araújo Universidade do Estado do Rio de Janeiro

Keywords:

ultrasonography, prenatal, birth weight, fetal weight

Abstract

The objective of this study was to evaluate the fetal weight estimation as measured by three-dimensional ultrasonography compared to two-dimensional ultrasonography. A diagnostic clinical trial was performed with 49 pregnant women at the Pedro Ernesto University Hospital. The fetal weight was estimated by performing two and three-dimensional ultrasound examinations in pregnant women whose delivery had occurred up to 48 hours; then, the estimates were compared to the birth weight. The Shapiro-Wilk test was performed to evaluate the normal distribution of the data. The comparison of the different formulas for fetal weight estimation with birth weight as well as the comparison of the formulas with each other were done respectively through the Wilcoxon and Kruskal-Wallis tests. The results were: Wilcoxon: two-dimensional ultrasonography p-value=0.86; three-dimensional ultrasonography p-value=0.24; two-dimensional ultrasonography associated with three-dimensional ultrasonography p-value=0.10; Kruskal-Wallis: p-value=0.18. Intraobserver variability evaluation using only thigh fraction volume showed agreement of 90% and using two and three-dimensional parameters showed agreement of 96%. In interobserver variability, this agreement was 90 and 96%, respectively. It was concluded that there is no statistically significant difference between fetal weight estimation performed through two-dimensional or threedimensional ultrasonography in the studied population.

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Author Biographies

Alessandra Lourenço Caputo Magalhães, Universidade do Estado do Rio de Janeiro

Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro Faculdade de Medicina, Universidade do Grande Rio Maternidade Escola, Universidade Federal do Rio de Janeiro

Alexandre José Baptista Trajano, Universidade do Estado do Rio de Janeiro

Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro Faculdade de Medicina, Universidade do Grande Rio

Nilson Ramires de Jesus, Universidade do Estado do Rio de Janeiro

Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro Maternidade Escola, Universidade Federal do Rio de Janeiro

Guilherme Ribeiro Ramires de Jesus, Universidade do Estado do Rio de Janeiro

Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro Instituto Nacional de Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira, Fundação Oswaldo Cruz

Dailson Damian da Silveira Pereira, Universidade do Estado do Rio de Janeiro

Faculdade de Ciências Médicas, Universidade do Estado do Rio de JaneiroMaternidade Escola, Universidade Federal do Rio de Janeiro

Denizar Vianna de Araújo, Universidade do Estado do Rio de Janeiro

Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro

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Published

2018-01-13

How to Cite

Magalhães, A. L. C., Trajano, A. J. B., Jesus, N. R. de, Jesus, G. R. R. de, Pereira, D. D. da S., & Araújo, D. V. de. (2018). Fetal weight estimation by three-dimensional ultrasonography. Jornal Brasileiro De Ginecologia, 128(1), 4–9. Retrieved from https://www.jornaljbg.org.br/jbg/article/view/46

Issue

Vol. 128 No. 1 (2018)

Section

Artigos Originais