Estimation of Gestational Age in Third Trimester of Pregnancy by Fetal Transcerebellar Diameter and its Accuracy Article type: original article
Yasmin Bassiouny, A. (2020). Estimation of Gestational Age in Third Trimester of Pregnancy by Fetal Transcerebellar Diameter and its Accuracy Article type: original article. EKB Journal Management System, 24(3), 33-40. doi: 10.21608/egyfs.2020.116497
Ayman Hassan , Yasmin Bassiouny. "Estimation of Gestational Age in Third Trimester of Pregnancy by Fetal Transcerebellar Diameter and its Accuracy Article type: original article". EKB Journal Management System, 24, 3, 2020, 33-40. doi: 10.21608/egyfs.2020.116497
Yasmin Bassiouny, A. (2020). 'Estimation of Gestational Age in Third Trimester of Pregnancy by Fetal Transcerebellar Diameter and its Accuracy Article type: original article', EKB Journal Management System, 24(3), pp. 33-40. doi: 10.21608/egyfs.2020.116497
Yasmin Bassiouny, A. Estimation of Gestational Age in Third Trimester of Pregnancy by Fetal Transcerebellar Diameter and its Accuracy Article type: original article. EKB Journal Management System, 2020; 24(3): 33-40. doi: 10.21608/egyfs.2020.116497

Estimation of Gestational Age in Third Trimester of Pregnancy by Fetal Transcerebellar Diameter and its Accuracy Article type: original article

The Egyptian Journal of Fertility of Sterility
Article 5, Volume 24, Issue 3 - Serial Number 11106352, September 2020, Page 33-40  XML PDF (1.98 MB)
Document Type: Original Article
DOI: 10.21608/egyfs.2020.116497
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Author
Ayman Hassan , Yasmin Bassiouny1, 2
1Department of Obstetrics and Gynecology, Kasr-Alainy Hospital
2Cairo University, Cairo, Egypt
Abstract
Objective: estimation of accurate gestational age correctly remains a crucial step in the antenatal care provided to all pregnant women. Our aim was to find out if transcerebellar diameter (TCD) could aid precisely in detecting accurate gestational age using ultrasound.
Patients and methods: One hundred and three healthy women with singleton pregnancy were included. Pregnancies complicated with fetal anomalies, intrauterine growth restriction or death were exclud- ed. Eligible participants were examined extensively by ultrasound to confirm the gestational age using TCD, biparietal diameter (BPD) and femur length (FL). Then, data were collected and statistically analyzed comparing the three measurements.
Results: TCD was accurate within in 88.3% of the cases, while FL was accurate in 65% of the cases and BPD was accurate 51.5%. Bland-Altman comparison of actual GA and GA estimated by TCD, FL and BPD showed narrow limits of agreement indicated low bias and better test with TCD, thus GA estimated by TCD was the best
.There was good correlation between actual GA and GA estimated by TCD (r=0.989**, p < 0.001).
Conclusion: TCD is the highest statistically significant measure- ment which could be used in the third trimester for assessing the ges- tational age compared with FL and BPD without any effect of parity, gestational age or fetal presentation on its accuracy.
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