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  2. Obstetric ultrasonography - Wikipedia

    en.wikipedia.org/wiki/Obstetric_ultrasonography

    The International Society of Ultrasound in Obstetrics and Gynecology (ISUOG) recommends that pregnant women have routine obstetric ultrasounds between 18 weeks' and 22 weeks' gestational age (the anatomy scan) in order to confirm pregnancy dating, to measure the fetus so that growth abnormalities can be recognized quickly later in pregnancy ...

  3. Gestational sac - Wikipedia

    en.wikipedia.org/wiki/Gestational_sac

    The gestational sac is spherical in shape, and is usually located in the upper part (fundus) of the uterus.By approximately nine weeks of gestational age, due to folding of the trilaminar germ disc, the amniotic sac expands and occupy the majority of the volume of the gestational sac, eventually reducing the extraembryonic coelom (the gestational sac or the chorionic cavity) to a thin layer ...

  4. Anomaly scan - Wikipedia

    en.wikipedia.org/wiki/Anomaly_scan

    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 ]

  5. Medical ultrasound - Wikipedia

    en.wikipedia.org/wiki/Medical_ultrasound

    Medical ultrasound includes diagnostic techniques (mainly imaging techniques) using ultrasound, as well as therapeutic applications of ultrasound. In diagnosis, it is used to create an image of internal body structures such as tendons, muscles, joints, blood vessels, and internal organs, to measure some characteristics (e.g., distances and velocities) or to generate an informative audible sound.

  6. List of fetal abnormalities - Wikipedia

    en.wikipedia.org/wiki/List_of_fetal_abnormalities

    Fetal abnormalities are conditions that affect a fetus or embryo, are able to be diagnosed prenatally, and may be fatal or cause disease after birth. They may include aneuploidies, structural abnormalities, or neoplasms. Acardiac twin; Achondrogenesis; Achondroplasia

  7. New 4-D ultrasound scans reveal harmful effects of maternal ...

    www.aol.com/article/2015/03/24/ultrasound-scans...

    It's been known that smoking while pregnant can harm babies, and now researchers in England believe they've been able to show the effects using ultrasound scans. Researchers at Lancaster and ...

  8. Doppler ultrasonography - Wikipedia

    en.wikipedia.org/wiki/Doppler_ultrasonography

    Absence of the portal system in a first trimester case associated with hygroma and aorto-umbilical fistula. (A): Transverse plane of the upper abdomen with color Doppler applied, showing umbilical cord insertion, stomach, the prominent hepatic artery and no afferent liver venous perfusion; (B): midsagittal plane reconstructed from a three-dimensional volume acquisition were the crown-rump ...

  9. Prelabor rupture of membranes - Wikipedia

    en.wikipedia.org/wiki/Prelabor_rupture_of_membranes

    Poor assembly of collagen: collagen is a molecule that gives fetal membranes, as well as other parts of the human body such as the skin, their strength. In cases of PPROM, proteins that bind and cross-link collagen to increase its tensile strength are altered.