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Estimating gestational age using placental thickness and fetal weight
Durgesh Singh1, Neha Gupta2, Pankaj Singh3
1Department of Anatomy, Maa Vindhyavasini Autonomous State Medical College, Mirzapur, Uttar Pradesh, India.
Bioinformation
|May 5, 2025
Summary
This study found that placental thickness and fetal weight strongly correlate with gestational age in pregnant women, particularly in later stages. These measurements offer valuable insights into fetal development during pregnancy.
Area of Science:
- Obstetrics and Gynecology
- Fetal Medicine
- Medical Imaging
Background:
- Placental thickness and fetal weight are key indicators of fetal well-being.
- Understanding their relationship with gestational age is crucial for monitoring pregnancy progression.
Purpose of the Study:
- To investigate the correlation between placental thickness, fetal weight, and gestational age.
- To analyze these relationships across different stages of pregnancy.
Main Methods:
- A study involving 187 pregnant women aged 11-40 weeks gestation.
- Measurement of placental thickness and fetal weight at various gestational stages.
- Statistical analysis to determine correlations.
Main Results:
- Mean placental thickness increased with gestational age (e.g., 3.29 cm at 30-40 weeks).
- Fetal weight significantly increased with gestational age (e.g., 2584.49g at 30-40 weeks).
- A strong positive correlation was observed between gestational age, placental thickness, and fetal weight, especially after 21 weeks.
Conclusions:
- Placental thickness and fetal weight are reliable indicators of gestational age.
- These correlations are strongest in the later stages of pregnancy.
- The findings support the use of these parameters in routine prenatal monitoring.

