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Early Hum Dev. 2004 Oct;80(1):1-5.

Three-dimensional first trimester fetal volumetry: comparison with crown rump length.

Author information

  • 1Ultrasound Unit, Deparment of Obstetrics and Gynecology, Sapir Medical Center, Kfar Saba 44281, Israel. Bensonm@clalit.org.il

Abstract

BACKGROUND:

Ultrasonographic volumetry measurements of human fetus have become possible using three-dimensional ultrasound systems.

OBJECTIVE:

To evaluate the weekly increase of fetal volume during the first trimester of normal pregnancies compared to the crown rump length and creating a first trimester fetal volume nomogram.

METHODS:

Crown rump length and three-dimensional ultrasonographic volumetry measurements performed on 72 first trimester fetuses using virtual organ computer aided analysis (VOCAL).

RESULTS:

A significant direct correlation (r = 0.939) was found between the calculated fetal volumes and crown rump lengths. A 6-12 weeks gestation fetal volume nomogram was proposed.

CONCLUSION:

Fetal volume database in the first trimester may serve as a reference table for diagnosis of early pregnancy failure.

PMID:
15363834
[PubMed - indexed for MEDLINE]
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