open access

Vol 84, No 12 (2013)
ARTICLES
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Distal Femoral Epiphyses Ossification Center Diameter and Third Trimester Gestational Age in Iranian Population

Shirin Birang, Ali Akbar Ameri, Zahra Najmi
DOI: 10.17772/gp/1674
·
Ginekol Pol 2013;84(12).

open access

Vol 84, No 12 (2013)
ARTICLES

Abstract

Objective: The epiphyses ossification centers appear late in gestation, when traditional biometric measurements are the least accurate, and they can be useful in determining third trimester’s gestational age. To evaluate fetal distal femoral epiphysis (DFE) size in various ages of gestation and establish a reference chart for Iranian population. Materials & Methods: DFE diameter was measured in 1300 normal singleton pregnancies, between 28 and 40 weeks. Mean diameter in each week of gestation was evaluated. Results: The DFE is not visualized in 28 weeks’ gestation. It appeared in a small proportion of the fetuses (5%) as early as the 29th week. DFE was detectable by ultrasonography increased dramatically to 56% at 33 weeks’ reaching 94% at 36 weeks and 100% at 37 weeks gestation. Conclusion: Ultrasonographic visualization of the distal femoral epiphyses ossification center is a useful marker of fetal third trimester’s gestational age.

Abstract

Objective: The epiphyses ossification centers appear late in gestation, when traditional biometric measurements are the least accurate, and they can be useful in determining third trimester’s gestational age. To evaluate fetal distal femoral epiphysis (DFE) size in various ages of gestation and establish a reference chart for Iranian population. Materials & Methods: DFE diameter was measured in 1300 normal singleton pregnancies, between 28 and 40 weeks. Mean diameter in each week of gestation was evaluated. Results: The DFE is not visualized in 28 weeks’ gestation. It appeared in a small proportion of the fetuses (5%) as early as the 29th week. DFE was detectable by ultrasonography increased dramatically to 56% at 33 weeks’ reaching 94% at 36 weeks and 100% at 37 weeks gestation. Conclusion: Ultrasonographic visualization of the distal femoral epiphyses ossification center is a useful marker of fetal third trimester’s gestational age.
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Keywords

Distal femoral epiphyses ossification center, DFE, epiphyses oddification center, Fetal bone development, gestational age, ultrasound

About this article
Title

Distal Femoral Epiphyses Ossification Center Diameter and Third Trimester Gestational Age in Iranian Population

Journal

Ginekologia Polska

Issue

Vol 84, No 12 (2013)

DOI

10.17772/gp/1674

Bibliographic record

Ginekol Pol 2013;84(12).

Keywords

Distal femoral epiphyses ossification center
DFE
epiphyses oddification center
Fetal bone development
gestational age
ultrasound

Authors

Shirin Birang
Ali Akbar Ameri
Zahra Najmi

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