Third order polynomial regression for biparietal diameter. Considering the Italian reference centile curves depicted in Figure 6which represent, respectively, the 5th, 10th, 25th, 50th, 75th, 90th, and 95th, the Salentinian samples are always above the upper limit, especially in the last weeks of gestation. Rachel R. Management of preterm infants with intrauterine growth restriction. Biparietal diameter 50th percentile Salento versus Italy versus Europe. Illustration of the mean a and SD b of the Z -score of TCD measurement throughout gestation for the two different reference equations.
Francis, and J.
Validation of Reference Charts for Mid-Trimester Fetal Biometry
In fact, no significant differences were observed in the values measured during the different growth stages. Cases with low birth weight, preterm delivery, or other prenatal complications were not excluded from analysis. Starting from the development of a growth chart purposely built for a specific population, in the paper, authors quantify and analyse the impact of the adoption of wrong growth charts on fetal diagnoses. The femur length FL was measured in a longitudinal scan where the whole femural diaphysis was seen almost parallel to the transducer and measured from the greater trochanter to the lateral condyle. The Nicolaides curve provided relatively high Z -scores, and the Chitty curve yielded relatively low Z -scores, throughout the gestational age range. J Clin Ultrasound ; View at Google Scholar S.