@misc{10481/68063,
year = {2021},
url = {http://hdl.handle.net/10481/68063},
abstract = {Background and Objectives: The accuracy with which the estimation of fetal weight (EFW)
at term is determined is useful in order to address obstetric complications, since it is a parameter
that represents an important prognostic factor for perinatal and maternal morbidity and mortality.
The aim of this study was to determine the role of the experienced observers with other variables
that could influence the accuracy of the ultrasound used to calculate EFW at term, carried out within
a period of seven days prior to delivery, in order to assess interobserver variability. Materials and
Methods: A cross-sectional study was performed including 1144 pregnancies at term. The validity
of the ultrasound used to calculate EFW at term was analyzed using simple error, absolute error,
percentage error and absolute percentage error, as well as the percentage of predictions with an
error less than 10 and 15% in relation to maternal, obstetric and ultrasound variables. Results: Valid
predictions with an error less than 10 and 15% were 74.7 and 89.7% respectively, with such precision
decreasing according to the observer as well as in extreme fetal weights. The remaining variables
were not significant in ultrasound EFW at term. The simple error, absolute error, percentage error
and absolute percentage error were greater in cases of extreme fetal weights, with a tendency to
overestimate the low weights and underestimate the high weights. Conclusions: The accuracy of
EFW with ultrasound carried out within seven days prior to birth is not affected by maternal or
obstetric variables, or by the time interval between the ultrasound and delivery. However, accuracy
was reduced by the observers and in extreme fetal weights.},
publisher = {MDPI},
keywords = {Birth weight},
keywords = {Fetal weight},
keywords = {Ultrasound fetal biometry},
keywords = {Estimated fetal weight},
keywords = {Fetal macrosomia},
keywords = {Fetal microsomia},
keywords = {Fetal growth restriction},
title = {Observer Influence with Other Variables on the Accuracy of Ultrasound Estimation of Fetal Weight at Term},
doi = {10.3390/medicina57030216},
author = {Sánchez Fernández, Mariola and Mozas Moreno, Juan and Mazheika, Marina and Mendoza Ladrón De Guevara, Nicolás},
}