Ultrasound correlation of transcerebellar diameter with last menstrual period for gestational age in second and third trimester of pregnancy
DOI:
https://doi.org/10.3126/jkmc.v11i2.48669Keywords:
Pregnancy, Transcerebellar diameter , Trimester, Ultrasound correlationAbstract
Background: Foetal biometry is useful modality in assessment of gestational age (GA) for good obstetric outcome.
Objectives: To compare ultrasonographic measurement of transverse cerebellar diameter (TCD) with other previously established foetal ultrasound biometric parameters.
Methods: An analytical cross-sectional study was conducted from August 2020 to February 2021 in Department of Radiology at Kathmandu Medical College after ethical clearance. Convenience sampling technique was utilised to include all pregnant women in second and third trimester with known last menstrual period (LMP). Written informed consent was taken from those willing to participate. Congenital malformations, multiple pregnancies, irregular menstrual cycle, and maternal illness were excluded. Data were entered and analysed by using SPSS v.22. Descriptive statistics like mean, standard deviation, and percent were used. Inferential statistics (t- test and Pearson correlation) was also used to see the correlation between different variables.
Results: Among 100 participants who participated in the study, 63 (63%) were primigravida with singleton pregnancy without any congenital anomalies. The mean foetal heart rate was 144.9 ± 13.6. The mean GA based on LMP, TCD, and other parameters were 30.86 ± 7.76 weeks, 31.07 ± 8.45 weeks, and 29.75 ± 6.61 weeks respectively. In 15-28 weeks, all parameters had nearly equal r-values. Among all, TCD revealed highest correlation (0.888). In 29-40 weeks, there was considerable difference in r-values. The second most accurate correlation was seen with head circumference (r = 0.874).
Conclusion: TCD being stable parameter not affected by foetal growth status maybe preferred over other parameters in estimating foetal gestational age.
Downloads
23
24
References
Kalish RB, Chervenak F, Sonographic determination of gestational age. Timisoara Medical Journal 2009;59(2): 202–208. https://doi.org/10.3109/14722240500390166
Eze C U, Onwuzu Q E , Nwadike, I U. Journal of Diagnostic Medical Sonography
, Vol. 33(3) 174–181. DOI: 10.1177/8756479316687997
Sersam L, Findakly S B,Fleech N H, Fetal Transcerebellar Diameter in Estimating Gestational Age in Third Trimester of Pregnancy. Journal of Research in Medical and Dental Science 2019, Volume 7, Issue 5, Page No: 60-66 https://www.jrmds.in/articles/fetal-transcerebellar-diameter-in-estimating-gestational-age-in-third-trimester-of-pregnancy-44444.html
Mandal Kumar Sumanta and et al. Evaluation of Fetal Transcerebellar Diameter as a Sonological Parameter for the Estimation of Fetal Gestational Age in Comparison to Biparietal Diameter and Femur Length. IAIM, 2019; 6(6): 41-50. https://iaimjournal.com/wp-content/uploads/2019/06/iaim_2019_0606_07.pdf
Mikovic Z and et al. Growth of the fetal cerebellum in normal pregnancy. JugoslGinekolPerinatol. 1989;29(5-6):157-60.
Chavez MR and et al. Fetal transcerebellar diameter measurement with particular emphasis in the third trimester: a reliable predictor of gestational age. Am J Obstet Gynecol 2004; 191(3):979-84.
Sersam LW, Findakly SB, Fleeh NH. Fetal Transcerebellar Diameter in Estimating Gestational Age in Third Trimester of Pregnancy. Journal of Research in Medical and Dental Science. 2019 Sep;7(5):60-6.
Matur Y, Chauhan RD, A study of ultrasonographic transcerebellar diameter in assessment of fetal gestational age. Int J Res Med Sci. 2018 Oct;6(10):3390-6.
Dashottar S, Senger KP, Shukla Y, Singh A, Sharma S, Transcerebellar diameter: An effective tool in predicting gestational age in normal and IUGR pregnancy. International Journal of Reproduction, Contraception, Obstetrics and Gynecology. 2018;7(10):4191.
Mandal SK, Ghosh SK, Roy S, Prakash B, Evaluation of Fetal Transcerebellar Diameter as a Sonological Parameter for the Estimation of Fetal Gestational Age in Comparison to Biparietal Diameter and Femur Length. age. 2019;6:7.
Prasad VN, Dhakal V, Chhetri PK, Accuracy of transverse cerebellar diameter by ultrasonography in the evaluation gestational age of fetus. Journal of College of Medical Sciences-Nepal. 2017 Mar 10;13(1):225-8.
Goel P, Singla M, Ghal R, Jain S, Budhiraja V, Babu CR, Transverse cerebellar diameter-a marker for estimation of gestational age.Journal of anatomical society of India. 2010 Dec 1;59(2):158-61.
Mcleary RD, Kuhns LR, Barr Jr M, Ultrasonography of the fetal cerebellum. Radiology. 1984 May;151(2):439-42.
Bhimarao, Nagaraju RM, Bhat V, Gowda PV. Efficacy of Transcerebellar Diameter/Abdominal Circumference Versus Head Circumference/Abdominal Circumference in Predicting Asymmetric Intrauterine Growth Retardation. J Clin Diagn Res. 2015;9(10):TC01-TC5. doi:10.7860/JCDR/2015/14079.6554
Downloads
Published
How to Cite
Issue
Section
License
Copyright © Journal of Kathmandu Medical College
The ideas and opinions expressed by authors or articles summarized, quoted, or published in full text in this journal represent only the opinions of the authors and do not necessarily reflect the official policy of Journal of Kathmandu Medical College or the institute with which the author(s) is/are affiliated, unless so specified.
Authors convey all copyright ownership, including any and all rights incidental thereto, exclusively to JKMC, in the event that such work is published by JKMC. JKMC shall own the work, including 1) copyright; 2) the right to grant permission to republish the article in whole or in part, with or without fee; 3) the right to produce preprints or reprints and translate into languages other than English for sale or free distribution; and 4) the right to republish the work in a collection of articles in any other mechanical or electronic format.
