Baby was born on 12/13 at a shocking tiny 6lbs 5oz! Mean birth weight in the cohort was significantly lower (2963 vs 3306 g, P < 0.001) than that in the state. Low birth weight (defined as <2500 g), preterm birth, and stillbirth were significantly more frequent in the cohort than in the state (17.3% vs 5.15%, 19.9% vs 8.0% and 3.5% vs 0.33%, respectively, P < 0.05). Methods Measurements were … I didn't have an ultrasound for weight done, but my midwife felt my belly and said 'whoa thats going to be a big baby!' But unlike weighing the baby on a scale after birth, even the best ultrasound measurements aren't 100% reliable. Comparison of conventional 2D ultrasound to magnetic resonance imaging for prenatal estimation of birthweight in twin pregnancy Caroline Kadji, Elisa Bevilacqua, Ivan Hurtado, Andrew Carlin, Mieke M Cannie , Jacques C Jani Ultrasound weight estimates vs. actual birth weight? Discussion in 'Pregnancy - Third Trimester' started by WantsALittle1, Jan 5, 2014. Ultrasound Obstet Gynaecol 2014 ; 44: 210 – 220 . The mean birth weight was 3.47 kg ± 0.47, while the mean estimated ultrasound weight was 3.43 kg ± 0.8. 2012;10(38):74-6. PMID:29456581 57. Kathmandu Univ Med J (KUMJ) . There is no method of checking fetal size before delivery can provide more than an estimated fetal weight (EFW). There was positive correlation between the ultrasound estimated weight and the actual birth weight. How Is Fetal Weight Measured with Ultrasound? In the birth weight greater than 4000 g, both methods underestimated the birth weight, and the mean errors and the rate of estimates within 10% of birth weight were similar for both methods. Bajracharya J, Shrestha NS, Karki C. Accuracy of prediction of birth weight by fetal ultrasound. Accuracy of fetal weight estimation is of key importance in antenatal care, as well as in the planning and management of labour and mode of delivery [1,2,3,4,5,6,7,8,9].In order to achieve more accurate prenatal fetal weight estimations and align these with a risk-optimizing mode of delivery, additional tools supporting the standard of use with ultrasound are needed. Conclusion Clinical estimation of birth weight in early labor is as accurate as routine ultrasonic estimation obtained in the preceding week. Background The aim of the study was to evaluate the ultrasound-derived measurements of the fetal soft-tissue, heart, liver and umbilical cord in pregnancies complicated by gestational (GDM) and type 1 diabetes mellitus (T1DM), and further to assess their applicability in the estimation of the fetal birth-weight and prediction of fetal macrosomia. In a 2009 study out of Texas, moms who had a baby with birth weight overestimated by 15 percent before labor, had a greater chance of C-section delivery. Curious what your latest ultrasound weight was vs actual birth weight was. I carried a 9 lb baby and I just don’t feel like this one is as big. Khalil, A, D’Antonio, F, Cooper, D Ultrasound estimation of birth weight in twin pregnancy: comparison of biometry algorithms in the STORK multiple pregnancy cohort. Milner J, Arezina J.The accuracy of ultrasound estimation of fetal weight in comparison to birth weight: A systematic review.Ultrasound. Page 1 of 2 1 2 Next > WantsALittle1 Well-Known Member. After knowing the answer to "how accurate are ultrasounds for weight", you may wonder how the weight is measured with ultrasound. 2018 Feb;26(1):32-41. PMID: 23132481 My ultrasound said 9 lbs but tech said give or take 1 lb. At 36 weeks she was predicting she was over 7lbs and if I went to 40 she would be 8/9 lbs. 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