Document Detail

Fetal ossification centers as predictors of gestational age in normal and abnormal pregnancies.
MedLine Citation:
PMID:  6726877     Owner:  NLM     Status:  MEDLINE    
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
P Gentili; A Trasimeni; C Giorlandino
Related Documents :
11381997 - Anaerobic treatment of landfill leachate by sulfate reduction.
6831537 - Development of the capillary system in the neurohypophysis of the rat.
6726877 - Fetal ossification centers as predictors of gestational age in normal and abnormal preg...
15843267 - Amniotic fluid lamellar body counts for the determination of fetal lung maturity: an up...
7596987 - Ocular absorption and irritation of pilocarpine prodrug is modified with buffer, polyme...
7067847 - A parametric method for comparing cumulative pregnancy curves following infertility the...
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    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Calcaneus / embryology
Femur / embryology
Fetal Growth Retardation / diagnosis,  physiopathology
Fetus / physiology*
Gestational Age*
Growth Plate / physiology*
Tibia / embryology

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

Previous Document:  Ultrasonography in the detection of intra-abdominal retained surgical sponges.
Next Document:  Ultrasonography in the management of liver trauma in children.