Foetal Age Estimation: Using First Trimester Gestational Parameters
Journal Name:
- Indian Journal of Basic & Applied Medical Research
Key Words:
Abstract (2. Language):
Introduction: It is observed that the health standards of Indian adults vary widely from region to region. Similar variations
are expected in the health standards of Indian babies.
Aim & Objectives: The present study aims at deriving normal values of fetal growth Parameters for ready references, in
order to determine correct gestational age and to compare with other studies to demonstrate variation, if any. The Study
also aims at deriving the regression equation and to demonstrate correlation between parameters.
Material & Methods: The study was carried out in 200 pregnant women in the Department of Radiology and ultrasonic
equipment used was “Real Time Ultrasonography ``
First trimester parameters like Gestational Sac Diameter (GSD) and Crown Rump Length (CRL) were used. Both the
parameters show linear growth as gestational age advances, they are strongly correlated with each other. Present study is
comparable to other studies and there is no variation.
Results: Regression equation for GSD is y = 0.76 x -2.94 & for CRL is y = 0.69 x -3.61.
Conclusion: From the present study we may conclude that Usefulness of Ultrasonography as an index for the measurement
of gestational age is beyond doubt.
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