A 21-year-old male asked:
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what individual fetal measurement holds accuracy (represents true gestational age) longest in pregnancy (fl, ac, bpd, hc)?

1 doctor answer
Dr. Carl Decker
24 years experience Radiology
Must use averages: I don't believe that any single measurement is most accurate throughout pregnancy. It is usually the averages that are taken. The most accurate measurements are actually in the first trimester in the way of the crown rump length in terms of predicting the estimated date of delivery.
Answered on Jan 13, 2016
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