Transvaginal ultrasonographic detection of congenital anomalies in the first trimester.
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Abstract
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.
Medical subject headings
- Congenital Abnormalities
- Fetal Diseases
- Prenatal Diagnosis
- Ultrasonography