Biometria fetal pela ultrassonografia da 24a à 38a semanas de gestação no Nordeste do Brasil.

Abstract

This study aimed to elaborate fetal biometry curves, by ultrasonography, comprising 24 to 38 weeks of gestation in Northeast Brazil, considering parameters may vary depending on the population being studied, and are used to calculate fetal weight and evaluate fetal intrauterine growth. In this study, we analyzed biparietal diameter (DBP), occipitofrontal diameter (DOF), head circumference (CC), abdominal anteroposterior diameter (DAP), abdominal transverse diameter (DTA), abdominal circumference (CA) and fêmur length (CF), in a cross-sectional, retrospective study, using bidimensional sonographic imaging. We performed analysis of the data, with representation of the results through graphs and tables based on percentiles. We created gestational age graphs through regression analysis and appropriate equations through minimum squares method for percentiles 5, 50 and 95 (p<0.05) We concluded that, comparing with literature data, there was a better correlation between DBP and CF values, but greater discrepancy between CA and CC. Our data is importante to create local references, and compare with literature references.