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Obstetric ultrasonography, or prenatal ultrasound, is the use of medical ultrasonography in pregnancy, in which sound waves are used to create real-time visual images of the developing embryo or fetus in the uterus (womb).
The anomaly scan, also sometimes called the anatomy scan, 20-week ultrasound, or level 2 ultrasound, evaluates anatomic structures of the fetus, placenta, and maternal pelvic organs. This scan is an important and common component of routine prenatal care . [ 1 ]
At early presentation of pregnancy at around 6 weeks, early dating ultrasound scan may be offered to help confirm the gestational age of the embryo and check for a single or twin pregnancy, but such a scan is unable to detect common abnormalities. Details of prenatal screening and testing options may be provided.
Madysen Wilcox gained a following on TikTok for documenting her recent pregnancy After some minor complications early on, she learned her son-to-be had a rare, fatal condition of the brain
An EIF in the fetal heart may indicate an increased chance of the baby having a chromosome problem. It does not affect the development of the baby or the function of the heart. If the baby has normal chromosomes, there would be no associated problems to be concerned about. No special treatment or tests are needed at delivery.
3D ultrasound is useful, among other things, for facilitating the characterization of some congenital defects, such as skeletal anomalies and heart issues. With real-time 3D ultrasound, the fetal heart rate can be examined in real-time. [4] [5]
[2] [7] A pregnancy is anembryonic if a transvaginal ultrasound reveals a sac with a mean gestational sac diameter (MGD) greater than 25 mm and no yolk sac, or an MGD >25 mm with no embryo. [9] A transabdominal ultrasound can be used to diagnose anembryonic pregnancy if a gestational sac can be identified, but is empty. [3]
The gold standard for diagnosing a heterotopic pregnancy is the transvaginal ultrasound. However, the sensitivity of the transvaginal ultrasound for diagnosing a heterotopic pregnancy has been found to range from 26.3% to 92.4%. [5] Therefore, both clinical symptoms and ultrasound imaging are used to make the diagnosis.