Medical dictionary. 2011.
nuchal translucency scanning — NT scanning an ultrasound screening test performed during pregnancy at 11 weeks of gestation that measures the maximum thickness of the translucency between the skin and the soft tissue overlying the cervical (neck) region of the spine of the… … The new mediacal dictionary
Nuchal scan — A nuchal scan is a sonographic prenatal screening scan (ultrasound) to help identify higher risks of chromosomal defects including Down s syndrome in a fetus, particularly for older women who have higher risks of such pregnancies. High thickness… … Wikipedia
ultrasound marker — the appearance, on ultrasound examination of a pregnant woman, of a particular physical abnormality in the fetus at a specific stage in fetal development. Such markers suggest the presence of specific chromosomal or developmental abnormalities.… … Medical dictionary
Down's syndrome — a condition resulting from a genetic abnormality in which an extra chromosome is present (there are three no. 21 chromosomes instead of the usual two), giving a total of 47 chromosomes rather than the normal 46. The chances of having a Down s… … Medical dictionary
Edwards' syndrome — a condition resulting from a genetic abnormality in which an extra chromosome is present there are three no. 18 chromosomes instead of the usual two. Affected babies, who rarely survive, have a characteristic abnormally shaped head, low birth… … Medical dictionary
Obstetric ultrasonography — Intervention Obstetric sonogram of a fetus at 16 weeks. The bright white circle center right is the head, which faces to the left. Features include the forehead at 10 o clock, the left ear toward the center at 7 o clock and the right hand… … Wikipedia
Cerebral aneurysm — Classification and external resources Diagram of cerebral aneurysm. ICD 10 I … Wikipedia
