Accuracy of pregnancy dating ultrasound


20-Jun-2020 16:02

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A marginal difference is found when cases of foetal ultrasound and menstrual history of the patients are compared.Ultrasound has proven to be a useful test when the menstrual history is unknown, and one can safely calculate the expected date of delivery (EDD) by an ultrasound.The estimated due dates calculated by pregnancy scans are sometimes found incorrect despite the fact that the sonographers are experts in their field.Scans are rather a more accurate way of determining the due date.The accuracy of determining the due date using LMP depends on regular cycles. The embryonic stage of development shown by scans is pretty uniform, and so it is more accurate to see each stage of the pregnancy through a scan.Since LMP is completely an internal process, the body mechanism differs as the body is under stress, fever or flu.The accuracy of any ultrasound test depends on several factors such as the current stage of pregnancy, the quality of the machine, and the position of the baby in the mother’s womb.

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Early pregnancy scans are more accurate than the latter ones for predicting the due date.All pregnant women look forward to knowing the due date of delivery of the baby. A pregnancy ultrasound is a great option to determine the baby’s due date.Ultrasound has become very helpful for obstetricians in predicting due dates and also diagnosing twins.It mostly occurs in the first trimester in most cases where the dates differ by more than a week.

If the repeat ultrasounds show the consistent progress of the foetus with no indication of any problems, then there is no reason to feel concerned if, for some reason, the doctor changes the due date.Pregnant ladies, these days get frequent ultrasound scans done as it is a safe way to know the measurement of the cervix, the passage that makes way for the baby to be delivered, and whether the patient is ready for labour pain within the following week.



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