Document Detail


Fetal ossification centers as predictors of gestational age in normal and abnormal pregnancies.
MedLine Citation:
PMID:  6726877     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The main fetal ossification centers appear ultrasonically as egg-shaped echo-rich areas. The calcaneal and talar ossification centers are seen at the level of the tarsus osseus, and the distal femoral epiphyseal and proximal tibial epiphyseal ossification centers are found at the level of the knee. Examination of 312 normal pregnancies between 20 and 40 weeks of gestation showed that the calcaneal ossification center was detectable for 24 weeks of gestation, the talar ossification center from 26 weeks, and the distal femoral epiphyseal and proximal tibial epiphyseal ossification centers, from 32 and 36 weeks, respectively. Corresponding figures found for 36 pregnancies showing intrauterine growth retardation (IUGR), examined between 34 and 40 weeks of gestation, were similar for the calcaneal and talar ossification centers but showed delays in the development of the epiphyseal ossification centers, which were particularly striking in cases of symmetrical IUGR. The amniotic fluid lecithin/sphingomyelin ratio was also evaluated in 51 normal pregnancies between 31 and 38 weeks of gestation and was found to be greater than or equal to 2 in every case where the distal femoral epiphyseal ossification center was greater than or equal to 6 mm in diameter. Evaluation of fetal ossification centers may be another useful means to evaluate gestational age in late pregnancy
Authors:
P Gentili; A Trasimeni; C Giorlandino
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine     Volume:  3     ISSN:  0278-4297     ISO Abbreviation:  J Ultrasound Med     Publication Date:  1984 May 
Date Detail:
Created Date:  1984-07-09     Completed Date:  1984-07-09     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8211547     Medline TA:  J Ultrasound Med     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  193-7     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Calcaneus / embryology
Female
Femur / embryology
Fetal Growth Retardation / diagnosis,  physiopathology
Fetus / physiology*
Gestational Age*
Growth
Growth Plate / physiology*
Humans
Osteogenesis*
Pregnancy
Tibia / embryology
Ultrasonography

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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