Both Neck Arteries Doppler
Imaging · Imaging
Available in:Hisar
Available at 1 lab
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₹5,000
About this test
What is a Both Neck Arteries Doppler?
A Doppler ultrasound of both carotid and vertebral arteries uses sound waves to create images and measure blood flow in the major arteries that supply the brain. It is a non‑invasive, painless test that helps doctors assess the health of these vessels.
Key parameters measured
| Parameter | What it shows |
|---|---|
| Peak systolic velocity (PSV) | Speed of blood during heart contraction – higher values may indicate narrowing (stenosis). |
| End‑diastolic velocity (EDV) | Speed during heart relaxation – low values can suggest severe blockage. |
| Intima‑media thickness (IMT) | Thickness of the artery wall – increased thickness is a marker of atherosclerosis. |
| Presence of plaque | Visible deposits that may narrow the artery. |
| Turbulence / flow pattern | Abnormal flow can signal stenosis or aneurysm. |
Why is it done?
- Routine cardiovascular risk assessment in people over 45 or with risk factors.
- Evaluation of symptoms such as dizziness, transient vision loss, or unexplained headaches.
- Monitoring known carotid or vertebral artery disease after treatment.
- Pre‑operative screening before brain or neck surgery.
Early detection
The test can help identify signs of carotid or vertebral artery stenosis, but it does not diagnose a disease on its own. A clinician interprets the results together with symptoms, history, and other investigations.
What abnormal results may mean
- Elevated PSV or reduced EDV may indicate a narrowing of the artery.
- Increased IMT suggests early atherosclerosis.
- Visible plaque or turbulent flow points to significant blockage.
Many factors—hydration status, recent exercise, medications (e.g., antihypertensives), and even body position—can influence the numbers, so results are considered in context.
Who might be advised to get this test?
- Adults with hypertension, high cholesterol, diabetes, or a family history of stroke.
- Individuals who smoke or have a history of smoking.
- Patients with a history of transient ischemic attack (TIA) or stroke.
- Those experiencing unexplained vertigo, visual disturbances, or neck pain.
Summary
A Both Neck Arteries Doppler is a quick, non‑invasive scan that visualises and measures blood flow in the brain‑supplying arteries, helping doctors spot early signs of narrowing or plaque buildup.
Used for detecting / monitoring
Before your test
Preparation for Both Neck Arteries Doppler
- Fasting: No fasting is required. If you are scheduled for other tests that need fasting, follow the strictest instruction.
- Medication: Continue your regular medications unless your doctor advises otherwise. If you are on blood thinners, inform the technician.
- Hydration: Drink plenty of water the day before; avoid excessive alcohol or strenuous exercise 24 hours prior.
- Procedure: A gel is applied to your neck and a handheld probe is moved over the carotid and vertebral arteries. The scan takes about 15–20 minutes and is painless.
- After the test: You can resume normal activities immediately.
- Confirm: Check with your doctor or the lab for any specific instructions. This information is educational and not a substitute for professional medical advice.
Sample type: Imaging
Report parameter guide
Peak Systolic Velocity
Maximum speed of blood flow during heart contraction
Low: may indicate reduced blood flow due to blockage or low cardiac output
High: may indicate narrowed artery (stenosis) or high cardiac output
End Diastolic Velocity
Speed of blood flow at the end of heart relaxation
Low: may indicate severe narrowing or occlusion of the artery
High: may indicate low resistance downstream or hyperdynamic circulation
Resistive Index
Ratio reflecting resistance to blood flow in the vessel
Low: may indicate low downstream resistance or hyperperfusion
High: may indicate high resistance due to stenosis or downstream obstruction
Intima-Media Thickness
Thickness of the inner arterial wall layers
Low: usually not applicable
High: may indicate atherosclerosis or arterial wall thickening
Flow Direction
Whether blood moves forward or backward
Low: reverse flow may indicate severe blockage or valve problems
High: forward flow is normal
Presence of Stenosis
Whether a narrowing of the artery is seen
Low: absence of stenosis is normal
High: presence of stenosis may indicate narrowing that could impair blood supply
Turbulence
Irregular, chaotic blood flow pattern
Low: absence of turbulence is normal
High: presence of turbulence may indicate atherosclerotic plaque or stenosis