• Users Online: 28
  • Print this page
  • Email this page
ORIGINAL ARTICLE
Year : 2020  |  Volume : 29  |  Issue : 3  |  Page : 491-493

The prediction of fetal maturity and gestational age by ultrasonic measurement of distal femoral epiphyseal secondary ossification center


Department of Radiography and Radiological Sciences, Faculty of Allied Medical Sciences, University of Calabar, Calabar, Cross River State, Nigeria

Correspondence Address:
Dr. Benjamin E. Udoh
Department of Radiography and Radiological Sciences, Faculty of Allied Medical Sciences, University of Calabar, Calabar, Cross River State
Nigeria
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/NJM.NJM_103_20

Rights and Permissions

Objective: The aim of this study was to determine the diameters of the distal femoral epiphyseal secondary ossification center (DFOC) in the various gestational ages (GAs) as well as to create a novel equation, through which GA can be calculated from the measurement of DFOC. Materials and Methods: EDAN Digital ultrasonic diagnostic imaging system (model DUS 3 made by EDAN, Korea) and a 3.5MHz Convex transducer were used for the sonographic measurement. Ultrasonographic examinations were performed on 999 normal singleton pregnancies with GAs ranging from the 28th to the 41st weeks. Patients were recruited from the University of Calabar Teaching Hospital to Assurance Medical Diagnostic Center, where the ultrasonographic examinations were carried out. Images of the long axis of the fetal femur were taken. The DFOC was visualized as a small echogenic, ovoid structure lying adjacent to the distal femur. Three measurements of the DFOC diameter (in mm) were taken from outer to outer margins, and the largest diameter was recorded. Other measurements obtained include femur length, abdominal circumference biparietal diameter, head circumference, fetal weight (FW), and GA. Results: DFOC increased with GA. A strong positive relationship was observed between DFOC and GA with a correlation coefficient of r = 0.85. DFOC also increased with FW with a correlation coefficient of r = 0.83. The equation (GA = 30.84 + [1.25 × DFOC in mm]) relates GA to DFOC. Conclusion: The diameter of the distal femoral epiphyseal secondary ossification center is a useful parameter for estimating GA and assessment of fetal maturity in the third trimester.


[FULL TEXT] [PDF]*
Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)
 

 Article Access Statistics
    Viewed56    
    Printed2    
    Emailed0    
    PDF Downloaded14    
    Comments [Add]    

Recommend this journal