Evaluation of Fetal Growth by Transcerebellar Diameter, Head Circumference to Abdominal Circumference Ratio

Shoeib, Mahmoud salah; Youssef, H. M.; Shalaby, Hend Abdelrahman; Mohamed, Alhussein Ahmed; El Menayyer, Ahmed

doi:10.21608/ebwhj.2024.322420.1360

	Evaluation of Fetal Growth by Transcerebellar Diameter, Head Circumference to Abdominal Circumference Ratio
Evidence Based Women's Health Journal
Article 9, Volume 15, Issue 15, January 2025, Page 1-8 PDF (917.28 K)
Document Type: Original Article
DOI: 10.21608/ebwhj.2024.322420.1360
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Authors
Mahmoud salah Shoeib ¹; H. M. Youssef²; Hend Abdelrahman Shalaby²; Alhussein Ahmed Mohamed²; Ahmed El Menayyer²
¹Department of Obstetrics and Gynecology, Mansoura University Hospitals Elgomhouria St.,Mansoura city 35111,Dakahlia,Egypt
²Department of Obstetrics and Gynecology, Faculty of Medicine, Mansoura University, Mansoura, Egypt
Abstract
Objective: To analyze if trans-cerebellar diameter/abdominal circumference ratio (TCD/AC) and head circumference/abdominal circumference ratio (HC/AC) values remained constant throughout the gestational age (GA) and to determine the cut-off values. Patient and Methods: In this observational prospective study, we enrolled 305 pregnant females above 20 weeks with singleton low-risk pregnancy attending outpatient clinic (OPC) or admitted to Obstetrics and Gynaecology department Mansoura University Hospitals over a period of 12 months .Using (Samsung UGEO H60&GE Logiq F6) to measure fetal biometry and assess GA including: HC(mm),TCD(mm)and AC(mm) then calculation of TCD/AC ratio [TCD was divided by AC and then multiplied by 100] and HC/AC ratio [dividing HC by AC] . Results: Both ratios (TCD/AC and HC/AC) are relatively stable parameters that can be used for early detection of abnormal fetal growth, particularly when GA is unknown. The cut-off values of TCD/AC and HC/AC ratios to predict IUGR are 13.7 and 1.2 respectively. Conclusion: The TCD/AC and HC/AC ratios are almost consistent and independent of gestational age. They are therefore very useful for anticipating IUGR beyond 20 weeks of gestation. TCD/AC and HC/AC ratio cut-off values are 13.7 and 1.2, respectively. Elevated any of both ratios above these cut-off values may predict IUGR at any gestational age.
Keywords
Abdominal circumference (AC); head circumference (HC); IUGR; trans-cerebellar diameter (TCD)


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