Best NT Scan in Indore — First Trimester Screening by Dr. Shweta Nagar
Looking for the best NT scan in Indore? The NT scan — or Nuchal Translucency scan — is the first major screening test of your pregnancy. Performed between 11 to 14 weeks, it measures the fluid-filled space at the back of your baby's neck to assess the risk of chromosomal abnormalities like Down syndrome, even before the baby is fully formed.
At Nagar's Ultrasound Clinic in Old Palasia, every NT NB scan is performed personally by Dr. Shweta Nagar — a DNB-qualified fetal imaging specialist with 20+ years of experience. Our Gemini ultrasound machines provide the sub-millimetre precision needed for accurate nuchal translucency measurement, and you receive a detailed report the same day.
What is an NT Scan?
The NT scan (Nuchal Translucency scan) is a specialized first-trimester ultrasound that measures the clear, fluid-filled space at the back of the developing baby's neck — called the nuchal fold. Every baby has some fluid in this area during early development. However, babies with chromosomal abnormalities tend to accumulate more fluid, causing this space to appear thicker on ultrasound.
The scan is typically combined with nasal bone assessment — checking whether the baby's nasal bone is visible at this stage. Together, this is called the NT/NB scan. When further combined with a first-trimester blood test (dual marker — free beta-hCG and PAPP-A), it forms the combined first trimester screening, which is the most accurate non-invasive method of assessing chromosomal risk in early pregnancy.
What Does the NT/NB Scan Measure?
Nuchal Translucency (NT): The thickness of fluid at the back of the baby's neck, measured in millimetres. This is the primary measurement of the scan.
Nasal Bone (NB): Whether the baby's nasal bone is present and visible. Absent nasal bone at 11–14 weeks is an additional marker for Down syndrome.
Crown-Rump Length (CRL): The baby's length from head to bottom, used to confirm gestational age and ensure the baby is within the correct size window for NT measurement.
Heartbeat: Fetal heart rate is recorded and checked against normal ranges for this gestational age.
Early anatomy check: Skull, brain, abdominal wall, limbs, bladder and stomach are checked for any obvious structural abnormalities visible at this early stage.
When Should NT Scan Be Done — Exact Timing Window
The timing of the NT scan is critical. The nuchal translucency measurement is only valid within a narrow gestational window, and scanning outside this window produces unreliable results.
Exact window: 11 weeks 0 days to 13 weeks 6 days. The baby's crown-rump length must be between 45mm and 84mm. The optimal time is 12 weeks — the baby is large enough to measure precisely but the nuchal fluid has not yet begun to reabsorb.
Before 11 weeks: The baby is too small (under 45mm CRL) for accurate nuchal measurement. The nasal bone may not be ossified yet, leading to false-positive absent nasal bone findings.
After 14 weeks: The lymphatic system begins draining the nuchal fluid naturally. The measurement becomes unreliable, and many centres will not perform the scan after 13 weeks 6 days.
Tip: Book your NT scan appointment when you are around 11 weeks pregnant. This gives you a buffer — if the baby is in an unfavorable position, you can return within the valid window without running out of time.
Understanding NT Scan Values — What is Normal?
After your NT scan in Indore, the report will include a nuchal translucency measurement in millimetres. Here is how to interpret the values.
| NT Measurement | Interpretation | Next Steps |
|---|---|---|
| Below 2.5 mm | Normal — Low risk | Routine prenatal care continues. Anomaly scan at 18–22 weeks. |
| 2.5 – 3.0 mm | Borderline | Combined screening with blood markers recommended for accurate risk calculation. |
| 3.0 – 3.5 mm | Mildly increased | Further evaluation recommended — dual marker test, possible NIPT or detailed fetal echocardiography. |
| 3.5 – 4.5 mm | Significantly increased | Genetic counselling recommended. Diagnostic testing (CVS or amniocentesis) may be offered. |
| Above 4.5 mm | Markedly increased | Higher risk of chromosomal and cardiac abnormalities. Detailed evaluation and genetic counselling essential. |
Important: An increased NT measurement alone does not diagnose any condition. It indicates risk, not certainty. Many babies with slightly increased NT values are born completely healthy. The NT measurement must be interpreted alongside maternal age, blood markers (if done) and nasal bone status for meaningful risk assessment.
What Conditions Does the NT Scan Screen For?
The first trimester screening in Indore evaluates risk for several chromosomal and structural conditions that may affect the baby.
Down Syndrome (Trisomy 21)
The most common chromosomal condition screened by NT scan. Caused by an extra copy of chromosome 21. Associated with intellectual disability and characteristic physical features. Detection rate improves significantly when NT is combined with blood markers.
Edwards Syndrome (Trisomy 18)
A severe chromosomal condition caused by extra chromosome 18. Associated with major organ defects and very limited survival. Usually shows markedly increased NT values and other ultrasound findings.
Patau Syndrome (Trisomy 13)
Rare chromosomal disorder with extra chromosome 13. Causes severe brain, heart and facial abnormalities. Often detected through combination of increased NT, absent nasal bone and other first-trimester markers.
Turner Syndrome (Monosomy X)
Affects females — one X chromosome is missing or partially missing. Can cause significantly increased NT due to lymphatic drainage issues. May also present with cystic hygroma on ultrasound.
Congenital Heart Defects
Increased NT is associated with higher risk of major cardiac abnormalities even when chromosomes are normal. Babies with NT above 3.5mm may be offered early fetal echocardiography.
Other Structural Anomalies
Increased NT can also indicate diaphragmatic hernia, skeletal abnormalities and certain genetic syndromes. The early anatomy check during NT scan may detect obvious structural defects at this stage.
What Happens During an NT Scan — Step by Step
Check-in and Documentation
You present your doctor's prescription, photo ID (Aadhaar) and sign the informed consent form as required under the PC-PNDT Act. Previous scan reports, if any, are reviewed.
Positioning
You lie comfortably on the examination table. Gel is applied to your lower abdomen. The scan is performed abdominally in most cases. If the baby is very early or in a difficult position, a transvaginal approach may be used for clearer images.
Crown-Rump Length Measurement
Dr. Nagar first measures the baby's CRL (head to bottom length) to confirm gestational age and ensure the baby is within the valid 45–84mm window for NT measurement.
Nuchal Translucency Measurement
The baby is imaged in a precise mid-sagittal profile view. The nuchal fold at the back of the neck is measured in millimetres. Multiple measurements are taken and the most accurate reading is recorded.
Nasal Bone Assessment
In the same profile view, Dr. Nagar checks whether the nasal bone is present and visible. Presence of nasal bone is a reassuring finding that reduces the calculated risk of chromosomal abnormality.
Early Anatomy and Heartbeat
Fetal heart rate is recorded. The skull, brain, limbs, abdomen, bladder and stomach are checked for any obvious structural abnormality visible at this early gestational age.
Report Preparation
A detailed written report with measurements, images, findings and clinical impression is prepared. Most reports at Nagar's Clinic are ready within 30–60 minutes after the scan.
NT Scan Cost in Indore
The NT scan price in Indore varies based on whether you are getting the ultrasound alone or the combined first trimester screening package with blood tests.
NT/NB Scan (ultrasound only): Rs 1,500 – Rs 2,500
Combined screening (NT scan + dual marker blood test): Rs 3,000 – Rs 5,000
NT scan + early anatomy check: Rs 2,000 – Rs 3,000
The combined screening package provides the highest accuracy — it uses NT measurement, nasal bone status, maternal age and blood marker levels (free beta-hCG and PAPP-A) to calculate a single risk ratio. Contact Nagar's Clinic on WhatsApp for exact current pricing.
How to Prepare for Your NT Scan
No fasting needed. Eat and drink normally before the scan.
Drink 2–3 glasses of water about 30 minutes before the appointment. A moderately full bladder can improve image quality at this early gestational age.
Bring your prescription. Doctor's referral with signature, stamp and registration number is mandatory under PC-PNDT Act for all pregnancy scans.
Carry valid photo ID. Aadhaar card or government-issued ID is required for documentation.
Bring previous reports. If you had a dating scan or early pregnancy ultrasound, carry those reports for reference.
Allow 30–45 minutes. The scan takes 20–30 minutes. If the baby is not in the correct position for NT measurement, you may be asked to walk briefly and return for a second attempt.
Why Choose Nagar's Clinic for NT Scan in Indore
Fetal Medicine Expertise
Dr. Shweta Nagar has 20+ years of fetal imaging experience and has performed thousands of NT scans. She follows the Fetal Medicine Foundation (FMF) protocol for standardized, internationally-accepted NT measurement technique.
Sub-Millimetre Precision
NT measurement accuracy depends entirely on equipment resolution. Our Gemini machines provide the image clarity needed to measure the nuchal fold to the nearest 0.1mm — critical for accurate risk assessment.
Doctor-Performed Scan
Every NT scan is performed by Dr. Nagar herself — not by a technician. Real-time interpretation during the scan means any additional findings are identified and communicated immediately.
Lady Sonologist
First-time mothers often prefer a female doctor for early pregnancy scans. Dr. Nagar provides a reassuring, comfortable environment and takes the time to explain findings during the scan itself.
Comprehensive Reporting
Your report includes NT measurement, nasal bone status, CRL, fetal heart rate, early anatomy findings and clinical impression — everything your gynecologist needs for complete first trimester assessment.
Trusted by Gynecologists
Obstetricians across Indore refer their patients to Nagar's Clinic specifically for NT/NB scans, trusting the measurement precision and report quality for accurate prenatal risk calculation.
Your Sonologist — Dr. Shweta Nagar
Dr. Shweta Nagar is a consultant radiologist and fetal imaging specialist practicing in Indore for over 20 years. Her MBBS, DMRE, DMRD and DNB qualifications make her one of the most credentialed radiologists in the city. She specializes in first trimester screening, fetal anomaly detection, colour doppler studies and interventional sonology.
For expecting mothers searching for a lady sonologist for NT scan in Indore, Dr. Nagar combines technical precision with patient empathy — explaining every finding in clear, simple language so you leave the clinic fully informed about your baby's health status.
NT Scan vs NIPT — Which Should You Choose?
NT Scan (Nuchal Translucency): Non-invasive ultrasound screening done at 11–14 weeks. Assesses risk based on nuchal fluid thickness, nasal bone and optional blood markers. Detection rate for Down syndrome is 85–90% when combined with blood tests. Affordable (Rs 1,500–5,000). Available at all sonography centres.
NIPT (Non-Invasive Prenatal Testing): Blood test analysing fetal DNA fragments in the mother's blood. Can be done from 10 weeks onwards. Detection rate for Down syndrome exceeds 99%. Costs Rs 15,000–25,000. Available at select laboratories.
Recommendation: Most gynecologists in Indore recommend starting with the NT scan + dual marker combination. If results show increased risk, NIPT can be done as a second-line test before considering invasive procedures like amniocentesis. NIPT may be offered as a first-line test for mothers over 35 or those with previous history of chromosomal abnormalities.
Frequently Asked Questions — NT Scan in Indore
NT scan (Nuchal Translucency scan) is a first-trimester ultrasound between 11–14 weeks that measures fluid at the back of the baby's neck. Increased thickness suggests higher risk of chromosomal abnormalities like Down syndrome, Edwards syndrome and Patau syndrome. It is a screening test, not a diagnostic test.
NT scan cost in Indore ranges from Rs 1,500 to Rs 2,500 for ultrasound alone. Combined first trimester screening (NT + dual marker blood test) costs Rs 3,000 to Rs 5,000. At Nagar's Clinic, the scan is performed by a DNB-qualified specialist on Gemini machines with same-day reporting.
Between 11 weeks 0 days and 13 weeks 6 days, with 12 weeks being the ideal time. The baby's CRL should be 45–84mm. Scanning before 11 weeks is too early; after 14 weeks, the nuchal fluid reabsorbs naturally, making measurement unreliable.
Below 3.0mm is generally considered normal at 12 weeks. Values of 3.0–3.5mm are borderline and may need further evaluation. Above 3.5mm is significantly increased. However, NT value alone does not diagnose any condition — it must be interpreted with maternal age and blood markers.
NT measures the fluid thickness at the back of the neck. NB checks whether the nasal bone is visible. Both are done together in the same scan session. Absent nasal bone is an additional marker for Down syndrome. Most centres perform combined NT/NB scanning.
Not legally mandatory, but strongly recommended by most gynecologists. It is the earliest opportunity to screen for chromosomal abnormalities. The decision is ultimately yours, but the scan provides valuable information for early pregnancy management.
An increased NT does not confirm a problem — it indicates higher risk. Your doctor may recommend dual marker blood test, NIPT, or diagnostic procedures like CVS or amniocentesis. Many babies with mildly increased NT values are born completely healthy.
Completely painless and safe. It uses standard ultrasound sound waves — no radiation or needles. Takes 20–30 minutes abdominally. Some early pregnancies may require transvaginal approach for clarity, which causes only mild discomfort.
Book Your NT Scan in Indore
Schedule between 11–14 weeks for accurate screening. Same-day reports available.
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