Sonographic fetal weight estimation in prolonged pregnancy: comparative study of two- and three-dimensional methods

ABSTRACT Objective The goal of this study was to evaluate the various methods of estimating fetal weight in term pregnancy and to determine their relative accuracy in predicting the same in different weight categories. Materials and methods The study was conducted at Department of Obstetrics and Gynecology, Medical College and Hospital, Kolkata from 1st July 2009 to 30th June 2010. It was a prospective cohort type of study covering 500 pregnant women at term. Parameters studied (a) average error (gm) in different birth weight categories, (b) standard deviation of prediction error in each birth weight category. Results Ultrasonography was found to have least standard deviation closely followed by the two clinical methods proposed by Johnson and Dare. The average positive predictive value of different methods in our study was 42.2, 70.9, 80.5 and 76% for Dawn's, Johnson's, Dare's formulas and USG respectively. Conclusion Easily measurable obstetric parameters with simple instruments requiring minimal manpower training are equally accurate as USG in predicting fetal weight. How to cite this article Kumari A, Goswami S, Mukherjee P. Comparative Study of Various Methods of Fetal Weight Estimation in Term Pregnancy. J South Asian Feder Obst Gynae 2013;5(1):22-25.

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Fetal Weight Estimation and Organ Volume Measurement by Three-Dimensional Ultrasonography

Current Topics on Fetal 3D/4D Ultrasound ◽

10.2174/978160805019210901010177 ◽

2012 ◽

pp. 177-191

Keyword(s):

Three Dimensional ◽

Volume Measurement ◽

Fetal Weight ◽

Weight Estimation ◽

Fetal Weight Estimation ◽

Organ Volume

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Assessment of accuracy of two dimensions ultrasonography of fetal thigh soft tissue versus Hadlock's formula in estimation of fetal weight

QJM ◽

10.1093/qjmed/hcab115.023 ◽

2021 ◽

Vol 114 (Supplement_1) ◽

Author(s):

Mohamed Abdel Fattah Elsenity ◽

Mohamed Abdel Aziz El Sayed El Zeiny ◽

Marwa Radwan Abbass Shahin ◽

Adel Shafik Salah El-Din

Keyword(s):

Soft Tissue ◽

Comparative Study ◽

Pregnant Women ◽

Maternity Hospital ◽

Two Dimensions ◽

Fetal Weight ◽

Study Group ◽

Weight Estimation ◽

Fetal Weight Estimation ◽

Better Than

Abstract Objective The current study aims to compare between mid-thigh soft tissue formula and modified mid-thigh soft tissue formula with Hadlock formula in estimation of fetal weight. Materials and methods Two hundred full term pregnant women attending Ain Shams Maternity Hospital in the period from April 2018 and April 2019 were included in this comparative study. Whole study group (200 women) had 2D ultrasonography using Hadlock's formula, thigh soft tissue formula and Modified thigh soft tissue formula. Results In our current study Hadlock's formula was better than thigh soft tissue and modified thigh soft tissue formula in estimation of fetal weight. Conclusions Fetal mid-thigh SST is a simple, useful, and easily applicable parameter for fetal weight estimation.

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