Fetal biometric parameters: Reference charts for a non-selected risk population from Uberaba, Brazil
Article Category: research-article
Publié en ligne: 31 mars 2017
Pages: 23 - 29
Reçu: 25 mai 2016
Accepté: 26 juil. 2016
DOI: https://doi.org/10.15557/jou.2017.0003
Mots clés
© 2017 Alberto Borges Peixoto et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial 3.0 Public License.
Objective
To establish reference charts for fetal biometric parameters in a non-selected risk population from Uberaba, Southeast of Brazil.
Methods
A retrospective cross-sectional study was performed among 5656 non-selected risk singleton pregnant women between 14 and 41 weeks of gestation. The ultrasound exams were performed during routine visits of second and third trimesters. Biparietal diameter (BPD) was measured at the level of the thalami and cavum septi pellucidi. Head circumference (HC) was calculated by the following formula: HC = 1.62*(BPD + occipital frontal diameter, OFD). Abdominal circumference (AC) was measured using the following formula: AC = (anteroposterior diameter + transverse abdominal diameter) × 1.57. Femur diaphysis length (FDL) was obtained in the longest axis of femur without including the distal femoral epiphysis. The estimated fetal weight (EFW) was obtained by the Hadlock formula. Polynomial regressions were performed to obtain the best-fit model for each fetal biometric parameter as the function of gestational age (GA).
Results
The mean, standard deviations (
Conclusion
Reference charts for the fetal biometric parameters in a non-selected risk population from Uberaba, Southeast of Brazil, were established.