Todays obstetrician gynecologist is required to interpret and in many cases perform ultrasound scans in the first trimester in fact certification of residency programs in many countries requires documentation of adequate exposure to and training in the evaluation of firsttrimester ultrasound.
An ultrasound exam is a procedure that uses highfrequency sound waves to scan a womans abdomen creating a picture sonogram of the baby and placenta.
Fetal nasal bone the nuchal translucency test will also check whether your baby has a visible nasal bone in the past few years it has been seen that approximately 3 in 4 babies with downs syndrome do not have a visible nasal bone at the time of the first trimester screening test.
What are obstetric ultrasound scans obstetric ultrasound is the use of ultrasound scans in pregnancy since its introduction in the late 1950s ultrasonography has become a very useful diagnostic tool in obstetrics currently used equipments are known as realtime scanners with which a continous picture of the moving fetus can be depicted on a monitor screen.
Associated terms for pregnancy are gravid and parousgravidus and gravid come from the latin for heavy and a pregnant female is sometimes referred to as a gravida gravidity is a term used to describe the number of times that a female has been pregnant similarly the term parity is used for the number of times that a female carries a pregnancy to a viable stage.
This clinical focus provides information relating to prenatal screening and diagnosis of neural tube defects down syndrome trisomy 18 and trisomy 13 it includes information about individuals suitable for testing available tests and test selection and interpretation for screening and diagnostic tests.
ultrasound exposures that elevate fetal temperature by 4176c above normal for 5 min or more have the potential to induce severe developmental defects.
What is a nuchal translucency ultrasound a nuchal translucency ultrasound commonly called a nuchal scan or nt scan is an ultrasound performed between 115 and 13 weeks 6 days gestation.
sydney ultrasound for women understands that our patients have unique needs and we tailor our care to each individual we have a range of services provided by our expert team of sonologists sonographers and genetic counsellors who use state of the art ultrasound technology.