scholarly journals Accuracy of Risanto's Formula Compared with Johnson's to Estimate Fetal Weight in Overweight Mothers

2016 ◽  
Vol 3 (1) ◽  
pp. 8
Author(s):  
Fifi Noviana ◽  
Risanto Siswosudarmo ◽  
Diah Rumekti Hadiati
Keyword(s):  
Fetal Weight ◽  
Estimate Fetal Weight

scholarly journals Swedish intrauterine growth reference ranges for estimated fetal weight

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Linda Lindström ◽  
Mårten Ageheim ◽  
Ove Axelsson ◽  
Laith Hussain-Alkhateeb ◽  
Alkistis Skalkidou ◽  
...  
Keyword(s):  
Fetal Growth ◽  
Postnatal Growth ◽  
Fetal Weight ◽  
Hierarchical Regression ◽  
Reference Ranges ◽  
Hierarchical Regression Model ◽  
Gestational Week ◽  
Prospective Longitudinal ◽  
Estimate Fetal Weight ◽  
Estimated Fetal Weight

AbstractFetal growth restriction is a strong risk factor for perinatal morbidity and mortality. Reliable standards are indispensable, both to assess fetal growth and to evaluate birthweight and early postnatal growth in infants born preterm. The aim of this study was to create updated Swedish reference ranges for estimated fetal weight (EFW) from gestational week 12–42. This prospective longitudinal multicentre study included 583 women without known conditions causing aberrant fetal growth. Each woman was assigned a randomly selected protocol of five ultrasound scans from gestational week 12 + 3 to 41 + 6. Hadlock’s 3rd formula was used to estimate fetal weight. A two-level hierarchical regression model was employed to calculate the expected median and variance, expressed in standard deviations and percentiles, for EFW. EFW was higher for males than females. The reference ranges were compared with the presently used Swedish, and international reference ranges. Our reference ranges had higher EFW than the presently used Swedish reference ranges from gestational week 33, and higher median, 2.5th and 97.5th percentiles from gestational week 24 compared with INTERGROWTH-21st. The new reference ranges can be used both for assessment of intrauterine fetal weight and growth, and early postnatal growth in children born preterm.

The Use of a Software-Assisted Method to Estimate Fetal Weight at and Near Term Using Magnetic Resonance Imaging

2017 ◽  
Vol 41 (4) ◽  
pp. 307-313 ◽  
Author(s):  
Caroline Kadji ◽  
Maxime De Groof ◽  
Margaux F. Camus ◽  
Riccardo De Angelis ◽  
Stéphanie Fellas ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Fetal Weight ◽  
Resonance Imaging ◽  
Near Term ◽  
Estimate Fetal Weight

Estimation of mouse fetal weight by ultrasonography: application from clinic to laboratory

2012 ◽  
Vol 46 (3) ◽  
pp. 225-230 ◽  
Author(s):  
Thang M Nguyen ◽  
Hitomi Nakamura ◽  
Atsuko Wakabayashi ◽  
Takeshi Kanagawa ◽  
Shinsuke Koyama ◽  
...  
Keyword(s):  
Fetal Growth ◽  
Fetal Weight ◽  
High Frequency Ultrasound ◽  
Biometric Parameters ◽  
Biparietal Diameter ◽  
Ultrasound System ◽  
Ultrasonographic Assessment ◽  
Growth Abnormalities ◽  
Estimate Fetal Weight ◽  
Frequency Ultrasound

Ultrasonographic assessment of fetal growth to estimate fetal weight has been widely used in clinical obstetrics but not in laboratory mice. Even though it is important to assess fetal growth abnormalities for gene-targeting studies using mice, there have been no reports of accurately estimated fetal weight using fetal biometric parameters in mice. The aim of this study was to establish an accurate mouse formula using fetal biometric parameters under ultrasound imaging. Using a high-frequency ultrasound system with a 40 MHz transducer, we measured 293 fetuses of biparietal diameter and mean abdominal diameter from day 12.5 postcoitus (p.c.) until day 18.5 p.c every day. Thirteen algorithms for humans based on head and/or abdominal measurements were assessed. We established an accurate formula based on measurement of the abdomen in Jcl:ICR mice to investigate gestational complications, such as intrauterine growth restriction.

scholarly journals Clinical formulas, mother's opinion and ultrasound in predicting birth weight

2008 ◽  
Vol 126 (3) ◽  
pp. 145-149 ◽  
Author(s):  
Maria Regina Torloni ◽  
Nelson Sass ◽  
Jussara Leiko Sato ◽  
Ana Carolina Pinheiro Renzi ◽  
Maísa Fukuyama ◽  
...  
Keyword(s):  
Birth Weight ◽  
Conclusive Evidence ◽  
Fetal Weight ◽  
Weight Estimation ◽  
Abdominal Girth ◽  
Fetal Weight Estimation ◽  
Chi Squared ◽  
Weight Prediction ◽  
Estimate Fetal Weight ◽  
Singleton Pregnancies

CONTEXT AND OBJECTIVE: Accurate fetal weight estimation is important for labor and delivery management. So far, there has not been any conclusive evidence to indicate that any technique for fetal weight estimation is superior to any other. Clinical formulas for fetal weight estimation are easy to use but have not been extensively studied in the literature. This study aimed to evaluate the accuracy of clinical formulas for fetal weight estimation compared to maternal and ultrasound estimates. DESIGN AND SETTING: Prospective study involving 100 full-term, cephalic, singleton pregnancies delivered within three days of fetal weight estimation. The setting was a tertiary public teaching hospital in São Paulo, Brazil. METHODS: Upon admission, the mother's opinion about fetal weight was recorded. Symphyseal-fundal height and abdominal girth were measured and two formulas were used to calculate fetal weight. An ultrasound scan was then performed by a specialist to estimate fetal weight. The four estimates were compared with the birth weight. The accuracy of the estimates was assessed by calculating the percentage that was within 10% of actual birth weight for each method. The chi-squared test was used for comparisons and p < 0.05 was considered significant. RESULTS: The birth weight was correctly estimated (± 10%) in 59%, 57%, 61%, and 65% of the cases using the mother's estimate, two clinical formulas, and ultrasound estimate, respectively. The accuracy of the four methods did not differ significantly. CONCLUSION: Clinical formulas for fetal weight prediction are as accurate as maternal and ultrasound estimates.

Optimizing hidden layer node number of BP network to estimate fetal weight

2007 ◽  
Author(s):  
Juan Su ◽  
Yuanwen Zou ◽  
Jiangli Lin ◽  
Tianfu Wang ◽  
Deyu Li ◽  
...  
Keyword(s):  
Fetal Weight ◽  
Bp Network ◽  
Node Number ◽  
Hidden Layer ◽  
Estimate Fetal Weight

Use of the femur length to estimate fetal weight in premature infants: preliminary results.

1985 ◽  
Vol 4 (11) ◽  
pp. 583-590 ◽  
Author(s):  
W A Campbell ◽  
A M Vintzileos ◽  
S Neckles ◽  
P J Weinbaum ◽  
D J Nochimson
Keyword(s):  
Premature Infants ◽  
Fetal Weight ◽  
Femur Length ◽  
Preliminary Results ◽  
Estimate Fetal Weight

scholarly journals Estimation of Fetal Weight by Clinical Methods and Ultrasonography and Comparing With Actual Birth Weight

2021 ◽  
Vol 31 (4) ◽  
pp. 219-226
Author(s):  
Raziyeh Mossayebnezhad ◽  
◽  
Maryam Niknami ◽  
Sedigheh Pakseresht ◽  
Ehsan Kazemnezhad Leili ◽  
...  
Keyword(s):  
Birth Weight ◽  
Pregnant Women ◽  
T Test ◽  
Fetal Weight ◽  
Altman Plot ◽  
Bland Altman Plot ◽  
Clinical Methods ◽  
Abdominal Palpation ◽  
Weight Groups ◽  
Estimate Fetal Weight

Introduction: Assessment of fetal weight is a vital factor in antenatal care, not only in the management of labor and delivery but also in identifying fetal weight disorders. Objective: This study compares the accuracy of clinical methods and ultrasonography in Estimating Fetal Weight (EFW) with Actual Birth Weight (ABW) in term pregnant women. Materials and Methods: This diagnostic test evaluation study was performed on 247 single-term pregnant women admitted to an educational, therapeutic hospital in Rasht City, Iran. In this study, abdominal palpation, Johnson’s formula, Insler’s formula, and ultrasonography were used to estimate fetal weight. One-sample t-test, the Chi-square, and the Bland-Altman plot were used to compare the diagnostic value of fetal weight estimation methods. The accuracy of tests was estimated based on sensitivity and specificity in fetal weight groups (below 2500 g, 2500- 4000 g, and above 4000 g) by the Bland-Altman plot. Results: The participating pregnant women had a Mean±SD age of 28.86±4.24 years, body mass index of 32.98±6.0 kg/m2, and gestational age of 39±1.04 wk. Their Mean±SD actual birth weight was 3343.352±432.799 gr, Also, the Mean±SD birth weight found by abdominal palpation was 3371.053±345.561 gr, Mean±SD birth weight by Johnson’s formula 3041.206 ±411 gr, by Insler’s formula 3556.316±531.567 gr, and by ultrasonography 3294.28±380.09 gr, Based on the one-sample t-test, the abdominal palpation had the lowest (P=0.261), and the Insler’s formula (P=0.001) had the highest difference with the actual birth weight. Regarding the fetal weight groups, Insler’s formula (96.33%) was highly accurate in Low Birth Weight (LBW), but abdominal palpation (91.09%) was more accurate in normal weight and macrosomia (94.72%) groups. There was a significant difference between clinical methods with ABW (P=0.026). Conclusion: Clinical methods are accessible, affordable, and available and can estimate fetal weight in developing countries, especially in our country.

scholarly journals The position of the testis during the fetal period: an additional parameter to estimate fetal weight

2010 ◽  
Vol 36 (5) ◽  
pp. 609-613 ◽  
Author(s):  
Luciano A. Favorito ◽  
Waldemar S. Costa ◽  
Francisco J. B. Sampaio
Keyword(s):  
Fetal Weight ◽  
Additional Parameter ◽  
Fetal Period ◽  
Estimate Fetal Weight
Sign in / Sign up

Export Citation Format

Share Document