Title
An objective measurement to diagnose micrognathia on prenatal ultrasound An objective measurement to diagnose micrognathia on prenatal ultrasound
Author
Faculty/Department
Faculty of Medicine and Health Sciences
Publication type
article
Publication
Padua ,
Subject
Human medicine
Source (journal)
Clinical and experimental obstetrics and gynecology. - Padua
Volume/pages
35(2008) :2 , p. 121-123
ISSN
0390-6663
ISI
000255702500007
Carrier
E
Target language
English (eng)
Affiliation
University of Antwerp
Abstract
Purpose: We introduce the frontal naso-mental angle as an objective measurement for the prenatal detection of fetal retrognathia. The aim of this study is to present normal values for the frontal naso-mental angle from 18 to 35 weeks gestational age. Materials and methods: In 81 patients between gestational ages 18 and 35 weeks the frontal naso-mental angle was measured on a profile view of the foetal face. The values were compared with four cases of proven Pierre Robin syndrome. Results: The frontal naso-mental angle is not dependent on gestational age, the mean value is 146.74 degrees, standard deviation 2.7; 5(th) percentile 142 degrees, 95(th) percentile 151 degrees. All four cases of Pierre Robin syndrome demonstrated a significantly lower frontal naso-mental angle below the 5(th) percentile. Conclusion: The frontal naso-mental angle represents an objective way to diagnose retrognathia.
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