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.
Cullen
M T
MT
Department of Obstetrics and Gynecology, Yale University School of Medicine, New Haven, Connecticut.
Green
J
J
Whetham
J
J
Salafia
C
C
Gabrielli
S
S
Hobbins
J C
JC
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