title: Fetal lung volume estimated by 3-dimensional ultrasonography and magnetic resonance imaging in cases with isolated congenital diaphragmatic hernia.
abstract: OBJECTIVE
  To assess the agreement of 3-dimensional ultrasonography and magnetic resonance imaging in estimating fetal lung volume in cases with isolated congenital diaphragmatic hernia.
  
  
  METHODS
  Fetal lung volume was measured in 11 cases of congenital diaphragmatic hernia (10 left and 1 right) by 3-dimensional ultrasonography and magnetic resonance imaging. These examinations were performed during the same week. The operators were blinded to each other's results. Intraclass correlation was used to evaluate the agreement between 3-dimensional ultrasonography and magnetic resonance imaging estimations of the ipsilateral, contralateral, and total fetal lung volume. A Bland-Altman graph was plotted to detect possible discordant observations.
  
  
  RESULTS
  The global intraclass correlation coefficient between magnetic resonance imaging and 3-dimensional ultrasonographic measurement of fetal lung volume was 0.94 (95% confidence interval, 0.78-0.98) with no outliers observed on the Bland-Altman plot.
  
  
  CONCLUSIONS
  There is a good agreement between 3-dimensional ultrasonography and magnetic resonance imaging for fetal lung volume estimation in cases with congenital diaphragmatic hernia.
authors.affiliation: Maternité, Hôpital Necker-Enfants Malades, Paris, France. rodrigoruano@hotmail.com
authors.forename: Rodrigo
authors.initials: R
authors.lastname: Ruano
authors.forename: Laurence
authors.initials: L
authors.lastname: Joubin
authors.forename: Pascale
authors.initials: P
authors.lastname: Sonigo
authors.forename: Alexandra
authors.initials: A
authors.lastname: Benachi
authors.forename: Marie-Cecile
authors.initials: MC
authors.lastname: Aubry
authors.forename: Jean-Christophe
authors.initials: JC
authors.lastname: Thalabard
authors.forename: Francis
authors.initials: F
authors.lastname: Brunelle
authors.forename: Yves
authors.initials: Y
authors.lastname: Dumez
authors.forename: Marc
authors.initials: M
authors.lastname: Dommergues
mesh_terms: D000328:Adult; D005314:Embryonic and Fetal Development; D005260:Female; D005333:Fetus / Q000033:anatomy & histology*; D006548:Hernia, Diaphragmatic / Q000000981:diagnostic imaging* / Q000473:pathology; D065630:Hernias, Diaphragmatic, Congenital; D006801:Humans; D021621:Imaging, Three-Dimensional; D008168:Lung / Q000000981:diagnostic imaging / Q000196:embryology*; D008176:Lung Volume Measurements; D011247:Pregnancy; D011446:Prospective Studies; D016216:Ultrasonography, Prenatal / Q000379:methods*