Is there an optimal gestation for ultrasound examination of fetal nasal bone in the first trimester?

Prenat Diagn. 2004 Nov;24(11):926-8. doi: 10.1002/pd.989.
No abstract available

Publication types

  • Case Reports
  • Letter

MeSH terms

  • Abortion, Induced
  • Adult
  • Diagnosis, Differential
  • Down Syndrome / diagnosis*
  • Down Syndrome / diagnostic imaging
  • Female
  • Humans
  • Nasal Bone / diagnostic imaging*
  • Nasal Bone / embryology*
  • Pregnancy
  • Pregnancy Trimester, First
  • Ultrasonography, Prenatal*