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Completed

NCT Number: NCT07675902

Transverse Cerebellar Diameter and Abdominal Circumference Ratio Versus Mid-Thigh Circumference and Femur Length Ratio in Assessment of Gestational Age in Normal and Growth Restricted Fetuses

The aim of this research was to examine the accuracy of transcerebellar diameter to abdominal circumference ratio (TCD/AC) and mid-thigh circumference and femur length (MTC/FL) in estimating the gestational age of healthy and abnormally growing fetuses.

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Key information

Conditions

Transverse Cerebellar Diameter Abdominal Circumference Ratio Gestational Age Growth Restricted Fetuses Mid-Thigh Circumference and Femur Length Ratio

Age range

18 year–35 year

Sex eligibility

Female

Study type

Observational

Primary location

Tanta University

Tanta, El-Gharbia, 31527, Egypt

About this study

Fetal growth restriction (FGR) is poor fetal growth, typically defined by weight under the 10th percentile, due to maternal, placental, and fetal factors.

The transcerebellar diameter to abdominal circumference ratio (TCD/AC) in ultrasound aids in predicting FGR, mainly through abdominal circumference (AC), while transverse cerebellar diameter (TCD) is less often related to fetal growth issues.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Pregnant women aged 18 to 35 years old.
  • 24-28 weeks of gestation
  • Primigravida
  • Single viable fetus
  • Reliable Last Menstrual Period (LMP) or first trimester ultrasonography to confirm gestational age.

Exclusion criteria

  • Chromosomal abnormalities.
  • Any medical disease that affect fetal growth.

Treatment and study plan

Fetal Ultrasound Assessment

Device

All enrolled pregnant women underwent a standardized obstetric ultrasound examination between 24 and 28 weeks of gestation.

Primary outcomes

  1. Diagnostic accuracy of transcerebellar diameter to abdominal circumference ratio (TCD/AC) ratio

    Time frame: At the time of ultrasound examination (24-28 weeks of gestation)

    Assessment of the diagnostic performance of the transcerebellar diameter to abdominal circumference ratio (TCD/AC) in predicting intrauterine growth restriction (IUGR)

Sponsors and collaborators

Lead sponsor

Tanta University

Other

Registry information

Important dates

Study start
2023
Primary completion
2024
Study completion
2024
First posted
Jun 30, 2026
Registry last updated
Jun 30, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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