NT-NB 2D/3D/4D
Advanced ultrasound imaging for fetal health assessment.
NT-NB 2D/3D/4D – Nuchal Translucency & Nasal Bone Scan
NT-NB (Nuchal Translucency & Nasal Bone) scan is a specialized ultrasound performed between 11-14 weeks of pregnancy to assess the risk of chromosomal abnormalities such as Down syndrome. It evaluates the fluid at the back of the baby’s neck (NT) and the presence of the nasal bone (NB).
Who Needs It?
- Pregnant women in the first trimester (11-14 weeks).
- Women with a history of genetic disorders or chromosomal abnormalities.
- Expectant mothers over 35 years of age (higher risk of genetic conditions).
- Couples who have undergone IVF or assisted reproductive technology (ART)..

Uses of NT-NB 2D/3D/4D
Chromosomal Abnormality Screening
Assesses the risk of Down syndrome (Trisomy 21), Trisomy 18, and Trisomy 13 .
Nasal Bone Development
Evaluates the presence or absence of the nasal bone , which is a key marker in genetic conditions.
Early Pregnancy Monitoring
Helps in early detection of fetal anomalies and ensures proper fetal development..
Preparation for NT-NB 2D/3D/4D
Frequently Asked Questions (FAQs)
What is the best time to do an NT-NB scan?
The NT-NB scan is performed between 11-14 weeks of pregnancy, as this is the ideal time to measure nuchal translucency and nasal bone.
Is NT-NB scanning painful?
No, NT-NB scanning is completely painless and non-invasive . It is a simple ultrasound procedure done over the abdomen.
What happens if NT-NB measurements are abnormal?
If the NT measurement is high or the nasal bone is absent, the doctor may suggest further genetic testing such as NIPT, amniocentesis, or CVS for confirmation.
IIs NT-NB scanning necessary for all pregnant women?
While it is not mandatory, doctors highly recommend it , especially for women over 35 years old or those with a family history of genetic disorders .