The techniques used may be of the type “non-invasive” ultrasound, doppler, echocardiography, Nuclear Magnetic Resonance, biochemical tests) or “invasive” (chorionic villus sampling, amniocentesis, cordocentesis).
the Objectives of prenatal diagnosis are: to ensure fetal well-being; to identify a disease; establishing a prognosis; indicate the times, places and modeà of childbirth; allow therapies pre-natal; to prepare the parents to accept the child.
however, There are important limitations in the diagnosis, prognosis not always provide reliable results.
ultrasound of The quarter
it Is the first ultrasound during pregnancy, and should be made no later than the 14th week. Ultrasonography of The quarter allows you to view the system in the uterus of the room with the gestation; and the view of the embryo, the number, activity; heart and the dating of the pregnancy. This type of ultrasound also allows for the measurement of the nuchal translucency (Nuchal Translucency).
you can book ultrasonography of The quarter at the Hospital’s Spirit to the number 06/68352280 (H24)
I test di screening.
Are non-invasive tests that can evaluate the probability; that the fetus suffers from a chromosomal abnormality. Do not replace the diagnosis of chromosomal diseases, only possible with amniocentesis and chorionic villus sampling, but allow you to assess the opportunityà to undergo these examinations in the light of an analysis of the più accurate individual risk.
The features più important of the screening test are represented by the detection rate, that is; the percentage of women with a fetus carrier from chromosomal abnormality positive test results and false positives, i.e. the percentage of women with a fetus free that are positive to the test.
The available tests can be performed in The first or in the second quarter, or both.
In The quarter you can; make the measurement of the nuchal translucency (NT) at which it is possible to add the dosage of serum maternal of the two substances (the free ßHCG and PAPP-A), resulting in what is called combined test. The sensitivityà of such a test può be increased by obtaining a view of the nasal bone of the fetus. All three tests should be performed between 11 and 13+6 weeks.
In the second quarter, and in particular between 15 and 17 weeks può be made on the tri-test (or triple test) which consists in a dosage serum maternal of the three substances (alpha fetal protein, estriol and ßHCG) are combined with the età motherly.
At our Hospital, it is possible to carry out the combined test by booking the number 06/68352280 (24h)
Ospedate S. Spirito in Saxia Rome – UOC of Obstetrics and Gynecology Director: Prof. Vincenzo Scotto di Palumbo Lg. The tiber Sassia – 06/68351
prenatal diagnosis – invasive prenatal Diagnosis – advice preconcezionale Symptoms pregnancy
Calendar of pregnancy online
prenatal Testing non-invasive: why is it and what are the risks
BACK TO the HOME OF PREGNANCY
Page updated on September 22, 2007