Ultrasonographic Evaluation of the Fetal Transverse Cerebellar Diameter (TCD) Measurement for Prediction of Gestational Age in 2nd and 3rd Trimesters of Pregnancy

Abstract

Prediction of gestational age based on sonographic fetal parameters is perhaps the cornerstone in modern obstetrics. The transverse cerebellar diameter serves as a reliable predictor of GA in the fetus and is a standard against which abnormalities in other fetal parameters can be compared. A variety of sonographic fetal biometric parameters can be used to assess gestational age in the second and third trimesters of pregnancy. The TCD is an additional biometric parameter against which aberrations in other fetal parameters can be compared.
 Objective: To assess the predictability of GA calculated by fetal TCD measured in 2nd & 3rd trimester of pregnancy on ultrasound.
 Methods: This was an cross-sectional study with a sample size 371 healthy, pregnant females with a normal fetus included aged 18 to 40 years, conducted in Gilani ultrasound center ferozpur road lahore. A standard 2nd and 3rd trimester ultrasound examination was done. In addition to the standard biometric parameters, the transcerebellar diameter was also measured. The collected data was subjected to statistical analysis.
 Results: Pearson product-moment correlation coefficient method was applied at a significance level of 1% (α = 0.01).using statistical software SPSS version 23.0. It was observed that BPD and TCD had a statistically significant, strong, linear correlation (r=0.976), GA of FL (r=0.978), LMP (r=0.976) P value (0.000) were considered significant.
 Conclusion: The TCD is a reliable parameter for the determination of GA in the 2nd & 3rd trimesters of pregnancy.
 Int. J. Appl. Sci. Biotechnol. Vol 6(4): 379-385

Role of Ultrasound for the Diagnosis of Uterine Prolapse in Women: A Systemic Review

“…The study's conclusion was that TCD was a valid parameters for determining GA pregnancy in the 2 nd and 3 rd trimesters. [9] We found in our study the TCD accurate parameters for assessment GA 2nd & 3rd trimesters of pregnancy have strong associations the Bi-parietal diameter, Abdominal circumference, Fetal length and Head Circumference. The cerebellum has appeared in posterior cranial fossa surround thick petrous ridges and occipital bone which allows to endure extrinsic pressure deformation.…”

“…In the 2 nd and3 rd trimesters of pregnancy, evaluate the using of TCD as an independent parameter for GA determination. [8,9] Rationale of study TCD is the accurate parameter for the early detection gestational ages in pregnancy 2 nd and 3 rd trimester.…”

Fetal Transverse Cerebellar Diameter (TCD) Measurement for Gestational Age Prediction in the Second and Third Trimesters of Pregnancy

“…In the 2 nd and3 rd trimesters of pregnancy, evaluate the using of TCD as an independent parameter for GA determination. [8,9] Material & Methods…”

Utilization of third-trimester fetal transcerebellar diameter measurement for gestational age estimation: a comparative study using Bland-Altman analysis

“…Accurate gestational age (GA; a term used to describe how far advanced a pregnancy is) estimation using sonographic fetal parameters is one of the great achievements in the history of modern obstetrics. 1 , 2 From the fetal ultrasound parameters, first-trimester fetal crown-rump length (CRL) correlates closely with GA and is often mentioned as the gold standard for dating pregnancy in some studies. 3 For pregnant women who had missed the opportunity to have this gold standard measurement in the first trimester of pregnancy and for pregnant women whose last normal menstrual period (LNMP) is unknown, fetal biometric parameters have been used to estimate the GA at later pregnancy.…”