STUDY THE CORRELATION BETWEEN PLACENTAL THICKNESS AND ESTIMATED FETAL WEIGHT BY 2D ULTRASONOGRAPHY ON NORMAL FOETUS MORE THAN 16 WEEKS OF AGES

2011 ◽  
pp. 58-66
Author(s):  
Thanh Nam Nguyen ◽  
Minh Loi Hoang ◽  
Vu Quoc Huy Nguyen
Keyword(s):  
Fetal Weight ◽  
The Third ◽  
Normal Foetus ◽  
Placental Thickness ◽  
Estimated Fetal Weight ◽  
Singleton Pregnancies

Objectives: To evaluate the development of foetus (BPD, AC, AAD, FL) and placenta (placental thickness - PT) and the correlation between placental thickness and fetal estimated weight. Materials and Method: Ultrasonographic study 1224 singleton pregnancies with normal developing foetus by cross-sessional describtive method from 01/05/2009 to 20/08/2010. Results: The first pregnancies consist of 59.07%, the second – 29.66 %, the third -11.28%. The fetal and placental ultrasonographic parameters continuously increase from 16 weeks to 38 weeks of age and get satistic meaning with p<0.01. There is closed agreeable correlation between BPD, AAD, AC, FL, PT and fetal ages (w) with r = 0.9829, 0.9895, 0.9882, 0.9827, 0.9689 p<0.0001 correlatively. Conclusion: Ultrasonographic fetal parameters strongly correlate with fetal ages. Placental thickness agreable correlation with fetal ages and FEW.

scholarly journals Historical development of estimated fetal weight calculation

2021 ◽  
pp. 18-25
Author(s):  
A.Yu. Alekseeva ◽  
◽  
A.M. Ziganshin ◽  
Keyword(s):  
Fetal Weight ◽  
Resonance Imaging ◽  
Accurate Calculation ◽  
Magnet Resonance Imaging ◽  
Third Trimester ◽  
The Third ◽  
Weight Calculation ◽  
Instrumental Approaches ◽  
Magnet Resonance ◽  
Estimated Fetal Weight

Accurate calculation of the estimated fetal weight is necessary for the choice of a correct approach to management of labour. Th e existing methods are not universal and require complex application. Th is article presents a review of literatures published in PubMed and Google Scholar databases in 1955-2021 and devoted to historical aspects in development of the existing clinical and instrumental approaches to calculation of estimated fetal weight. The paper presents existing methods for calculation of estimated fetal weight at diff erent gestational ages as well as methods making it possible to predict fetal weight before gestation onset. Data on their informative value during the third trimester and alterations in their accuracy depending on the pregnant patient’s BMI are presented. Th e topic of application of magnet-resonance imaging for fetometry is considered with comparison of this approach to a more common method of ultrasonography.

Possibilities of geometric modeling in reducing the error of estimated fetal weight calculation

2020 ◽  
Vol 69 (4) ◽  
pp. 13-22
Author(s):  
Viktor A. Mudrov
Keyword(s):  
Gold Standard ◽  
Geometric Modeling ◽  
Fetal Weight ◽  
Term Pregnancy ◽  
Average Value ◽  
Second Stage ◽  
The Third ◽  
Third Stage ◽  
Weight Calculation ◽  
Estimated Fetal Weight

Hypothesis/aims of study. The aim of this study was to evaluate the possibilities of geometric modeling in reducing the error of estimated fetal weight calculation. Study design, materials and methods. During the first stage of the study, a mathematical dependency was determined by geometric modeling of the results of an objective examination of the pregnant woman, which hypothetically will reduce the error of estimated fetal weight calculation. The second stage of the study included a prospective analysis of the error of the developed method and standard formulas for estimated fetal weight calculation at full-term pregnancy, and the third stage at preterm pregnancy. Weighing the newborn is the gold standard, which allows to objectively assess the error of the studied formulas. Results. The average value of the relative error of fetal weight calculation using the Jordanias formula was 14,2%, the Johnsons 18,6%, the Lankowitzs 16,2%, the Yakubovas 12,2%, the Rudakovs method 14,3%, and the developed formula 9,0%. Conclusion. The data obtained confirmed the high importance of geometric modeling in reducing the error of estimated fetal weight calculation.

scholarly journals Sonographic Estimated Fetal Weight among Diabetics at ≥ 34 Weeks and Composite Neonatal Morbidity

2018 ◽  
Vol 08 (02) ◽  
pp. e121-e127
Author(s):  
Leen Al-Hafez ◽  
Michael Pirics ◽  
Suneet Chauhan
Keyword(s):  
Retrospective Study ◽  
Confidence Intervals ◽  
Gestational Age ◽  
Neonatal Morbidity ◽  
Fetal Weight ◽  
Inclusion Criteria ◽  
Increased Risk ◽  
Estimated Fetal Weight ◽  
Singleton Pregnancies

Objectives The objective was to assess the composite neonatal morbidity (CNM) among diabetic women with sonographic estimated fetal weight (SEFW) at 10 to 90th versus >90th percentile for gestational age (GA). Study Design The inclusion criteria for this retrospective study were singleton pregnancies at 34 to 41 weeks, complicated by diabetes, and that had SEFW within 4 weeks of delivery. Odds ratios (ORs) with 95% confidence intervals (CI) were calculated. Results Among the 140 cohorts that met the inclusion criteria, 72% had SEFW at 10th to 90th percentile for GA, and 28% at >90th percentile. Compared with women with diabetes with last SEFW at 10th to 90th percentile, those with estimate > 90th percentile for GA had a significantly higher rate of CNM (13 vs. 28%; OR, 2.65; 95% CI, 1.07–6.59). Among 109 diabetic women who labored, the rate of shoulder dystocia was significantly higher with SEFW at >90th percentile for GA than those at 10th to 90th percentile (25 vs. 2%; p = 0.002); the corresponding rate of CNM was 29 versus 10% (p = 0.02). Conclusion Among diabetic women with SEFW > 90th percentile for GA, CNM was significantly higher than in women with estimate at 10 to 90th percentile. Despite the increased risk of CNM, these newborns did not have long-term morbid sequela.

scholarly journals Ultrasonographic measurement of placental thickness and its correlation with estimated fetal weight

2017 ◽  
Vol 7 (1) ◽  
pp. 287
Author(s):  
Nasreen Noor ◽  
Akanksha Jain ◽  
Shazia Parveen ◽  
Syed Manazir Ali
Keyword(s):  
Birth Weight ◽  
Fetal Weight ◽  
P Value ◽  
Antenatal Visit ◽  
Singleton Pregnancy ◽  
Ultrasound Evaluation ◽  
Fetal Birth Weight ◽  
The Mean ◽  
Placental Thickness ◽  
Estimated Fetal Weight

Background: The human placenta develops with the principal function of providing nutrients and oxygen to the fetus. Objective of present study was to assess the relationship between placental thickness with estimated fetal weight.Methods: The present study was a prospective observational study and includes 152 pregnant women with known last menstrual period, history of regular menstruation, singleton pregnancy and aged between 20 and 35 years. After Institutional Ethics Committee approval all recruited women were observed for baseline demographic and obstetric data including age, parity and past medical events at first antenatal visit. All women provided an informed written consent and underwent ultrasound evaluation of placental thickness at 18 to 40 weeks of gestation.Results: In the present study the mean placental thickness between the ranges of 18-40mm was 31.63±4.79mm and the mean estimated fetal birth weight was 2145.86±121.24grams. The pearson’s correlation coefficient between the two was 0.982. Thus, proving the significant positive correlation between placental thickness and estimated fetal birth weight (p-value <0.001).Conclusions: Estimated fetal weight is a very important component of antenatal care in which ultrasonography plays an important role. Placental thickness measured at the level of umblical cord insertion can be used as an accurate sonographic indicator in the assessment of fetal weight because of its linear correlation. Therefore, it can be used as an additional sonographic tool in assessing fetal weight.

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