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Fetal biometry at 14-40 weeks' gestation.

R J Snijders¹, K H Nicolaides

¹Harris Birthright Research Centre for Fetal Medicine, King's College Hospital, London, UK.

Ultrasound in Obstetrics & Gynecology : the Official Journal of the International Society of Ultrasound in Obstetrics and Gynecology

|January 1, 1994

Summary

This study establishes normal biometrical ranges for 1040 pregnancies. These ranges aid in assessing fetal growth and development for populations with similar birth weight distributions.

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Area of Science:

Obstetrics and Gynecology
Perinatology
Fetal Medicine

Background:

Accurate biometrical assessment is crucial for monitoring fetal growth and identifying potential complications during pregnancy.
Establishing population-specific normal ranges improves the precision of fetal biometry interpretation.

Purpose of the Study:

To define normal ranges for various biometrical parameters in singleton pregnancies.
To provide a reference dataset for evaluating fetal growth in term infants.

Main Methods:

Cross-sectional data analysis of 1040 normal singleton pregnancies.
Inclusion criteria focused on livebirth at term with normal, appropriately grown infants.
Patient selection aimed to match Yudkin and colleagues' birth weight distribution.

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Main Results:

Established normal ranges for a wide array of fetal biometrical parameters.
Data derived from a cohort representative of specific birth weight distribution patterns.
The generated ranges are applicable to populations with similar birth weight characteristics.

Conclusions:

The study provides valuable reference ranges for biometrical parameters in normal pregnancies.
These ranges can be utilized for assessing fetal growth in comparable populations.
This resource supports clinical decision-making in prenatal care and fetal assessment.