Population-based record-linkage study of 893,360 singleton livebirths of at least 33 weeks gestation without major congenital conditions born in hospital, New South Wales, Australia, 2001–2011. Using age at first AGE hospital admission, Cox-regression was used to estimate the associations for ...
Mathematical modeling of the data demonstrated that the femur growth curve is always linear beyond 24 weeks of gestation. Tlte following regression equation was derived : GA (week) = 5.2 FL (cm) + 2, SD 卤5 days (Honarvar's Formula 2). According to this data, the error in estimation ...
Second-trimester assessment of gestational age in twins: validation of singleton biometry charts. ObjectiveTo determine the accuracy of dating twin pregnancies, of between 16 and 26 weeks' gestation, using singleton head circumference (HC) formulae.Meth... T Dias,T Arcangeli,A Bhide,... - 《Ul...
After 12 weeks' gestation excessive curvature of the fetus may lead to erroneous shortening of CRL measurement; therefore, other measurements, such as the biparietal diameter, should be used to estimate gestational age. Fig. 2. Ultrasound image of a fetus at 10 weeks' gestation. The crown-rump...
Consequently, fetal ultrasound late in pregnancy has a wide margin of error of at least ±2 weeks’ gestation. Here, we utilise state-of-the-art machine learning methods to estimate gestational age using only image analysis of standard ultrasound planes, without any measurement information. The ...
All girls were born between 36 and 42 weeks of gestation and there were no multiple pregnancies in our cohort. Being born SGA was defined on the basis of a birth weight and/or length less than 2 SDS of the mean according to sex and gestational age, relative to Swedish growth references ...
Estimation of fetal weight by ultrasound prior to 33 weeks gestation The aim of this study was to develop an accurate formula for the ultrasonic prediction of fetal weight for infants < 33 weeks gestational age and s 1500 g ... A Hotchin,R Bell,MP Umstad,... - 《Australian & New Zeal...
Being born small (SGA) or large for gestational age (LGA) is associated with adverse birth outcomes and metabolic diseases in later life of the offspring. It is known that aberrations in growth during gestation are related to altered placental function. Placental function is regulated by epigenetic...
clock (clock 2) could be compromised in species for which knowledge of maximum lifespan is inaccurate, we developed a third universal clock, using age at sexual maturity (ASM) and gestation time instead of maximum lifespan, as these traits are better established and explain over 69% of maximu...
Infants born large for gestational age (LGA) at term are defined as those born at 37–41 weeks’ gestation with a birth weight above the 90th percentile for gestational age.1 Previous studies have reported that LGA is associated with a high risk of adverse outcomes, such as birth injuries ...