Transvaginal ultrasonographic detection of congenital anomalies in the first trimester.
Transvaginal ultrasonography enables detailed visualization of the first-trimester pregnancy. Thirty-three structural anomalies have been diagnosed in the first trimester of pregnancy during a 2-year study period. An understanding of normal embryonic development is essential before attempting diagnosis in this gestational period.
Department of Obstetrics and Gynecology, Yale University School of Medicine, New Haven, Connecticut.
M T
MT
Cullen
J
J
Green
J
J
Whetham
C
C
Salafia
S
S
Gabrielli
J C
JC
Hobbins
D000013:Congenital Abnormalities / Q000175:diagnosis*; D005314:Embryonic and Fetal Development; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis*; D006801:Humans; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D011296:Prenatal Diagnosis; D014463:Ultrasonography