Placental thickness and Transcerebellar diameter for accurate estimation of gestational age in the second trimester (A cross sectional study) | ||||
| The Egyptian Journal of Fertility of Sterility | ||||
| Article 5, Volume 25, Issue 2 - Serial Number 11106352, May 2021, Page 36-46 PDF (1.9 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/egyfs.2021.170464 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| Samar Amin Ahmed Saleh, Hatem Hussein El Gamal, Nermeen Ahmed Mostafa Elghareeb | ||||
| Department of Obstetrics and Gynaecology, Faculty of Medicine-Ain Shams University | ||||
| Abstract | ||||
| Objective: To assess the accuracy of combined measurement of placental thickness and transcerebellar diameter in estimation of fetal gestational age in second trimester. Patients and Methods: A cross sectional study was conducted at ultrasound unit, department of obstetrics and gynecology, Ain shams University Maternity Hospital in the period between January 2020 and March 2020.The population studied included 161 pregnant ladies at 14 to 26 weeks.Trans-abdominal ultrasound (Samsung H60, Convex Pro = CV1 = 8MHz - probe 4.9 MHz) was used to asses placental thickness and transcerebellar diameter. Results: Our results showed that there is positive correlation between Placental thickness and gestational age r= 0.44 which is highly significant (P value < 0.001). Also highly statistically significant positive correlation between TCD and G.A (P value < 0.001) r= 0.92. Statistical analysis of our results showed that trans-cerebellar diameter was more accurate than placental thickness for accurate estimation of gestational age with almost perfect agreement (0.91) between gestational age by last menstrual period and gestational age by trans-cerebellar diameter. Conclusion: Client’s aged 32.8 ±3.4. More than half had primary infertility with mean duration of 4.6 ± 2.4. Female factor infertility was the commonest cause of infertility. The pregnancy rate per embryo transfer was 36.4%, miscarriage rate was 9.1%, while the live rate was 27.3%. The mean VAS scores at 1hour, 6 hours, 24 hours and at embryo transfer were 7.1 ± 2.8, 4.6 ±1.4, 2.8 ±1.2 and 1.0 ± 0.9 respectively. The mean Likert score was 2.4 ± 0.9. Conclusion: Both placental thickness and TCD are useful fetal biometric parameters that can be used for assessment of gestational age. Although placental thickness is positively correlated to G.A, it is not as accurate as TCD. Unfortunately, combined use of placental thickness and TCD is not superior to TCD alone in accurate estimation of gestational age. | ||||
| Keywords | ||||
| Keywords: Ultrasound; placental thickness; transcerebellar diameter; gestational age | ||||
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