What is NT scan in tamil |NT scan Tamil
Nuchal translucency scan
Imaging in Foetus
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In this video i have clearly explained about foetal ultrasounds
what is NT scan ?
When it is done ?
What is the significance ?
kindly go through and understand the purpose clearly explained
Nuchal translucency {NT SCAN }
Nuchal translucency scan (also called first trimester of pregnancy screening) is carried out during weeks 11-13 of a pregnancy.
The scan uses ultrasound to screen for Down syndrome, or other chromosomal or inherited conditions in the foetus.
Other non-chromosomal conditions, such as neural tube defects, abdominal wall defects, limb abnormalities and some congenital heart disease, can also be detected at this stage of the pregnancy.
Screening can determine the likelihood of risk of an abnormality, but does not diagnose the condition. If screening does identify a possible risk, it does not necessarily mean there is an abnormality present, but does mean that further testing is necessary.
A nuchal translucency scan is combined with the mother’s age and results of a blood test showing the mother’s pregnancy hormone levels to provide a ‘combined risk’.
Without the blood test, screening is 75% accurate for predicting Down syndrome. With the blood test, the accuracy increases to 85%. Women who return a high-risk result from the screening will be offered formal genetic testing using other procedures, such as amniocentesis or chorion villus sampling (CVS).
Nuchal translucency scan done in 11 -14 weeks beyond that the sensitivity varies
normal value depends upon the gestational age of baby and mother`s age
NORMAL VALUE IS BETWEEN 1-3.5 mm
scan process tajes about 30 mins
cost can range from 750 -1000 rs it may varify from place to place
DiSCLAIMER - FOR EDUCATIONAL PURPOSE ONLY ,CONTENT COPYRIGHTED TO MEDIMINUTES CHANNEL.
also see my other videos on downs syndrome screening
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18 сен 2024
