TRANSCEREBELLAR DIAMETER AS A PARAMETER FOR DETERMINATION OF GESTATIONAL AGE FROM 20TH WEEK TO TERM IN HEALTHY WOMEN WITH UNCOMPLICATED PREGNANCY

Dr. Sonika Gupta, Dr. Vikrant Gupta, Dr. Manik Mahajan

Abstract


Background: - Accurate assessment of gestational age is pivotal to give quality maternity care. Ultra-sonographic fetal biometry is the most
widespread method to establish gestational age (GA). Ultrasound parameters like Biparietal Diameter (BPD), Head Circumference (HC), & Femur
Length (FL) in second and third trimester are not very reliable for dating the pregnancy. Fetal Transverse cerebellar diameter (TCD) has been
shown to strongly correlate with gestational age in late trimesters and even in cases like IUGR, where others parameters like BPD, HC& AC are
affected.
Methods: - The present study was conducted in Government Medical College, Jammu on a population of 100 pregnant women between 20-36
weeks of gestation. The accurate gestational age of all the subjects of study population was already calculated from early dating scan. TCD was
measured in all subjects in centimeters at 20 weeks, 28 weeks & 36 weeks of gestation along with other parameters like BPD, HC & FL.
Result: - In the present study, it was found that standard error from the gestational age at all weeks is least for TCD. It indicates that the TCD in the
present study correlated well with assigned gestational age.
Conclusion: - It has been concluded from the present study that TCD can be used as an individual parameter in estimating gestational age
especially in late trimesters and in cases like IUGR where other biometric indices are not reliable.


Keywords


Pregnancy, TCD, Ultrasound

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References


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