Is MRI Neck Angio (TOF) painful?

No. You simply lie still; there are no needles unless optional contrast is used.

How soon can I drive after the scan?

Immediately, unless you received sedation – then wait 2 hours and bring an escort.

Can I eat or drink before the test?

Yes, for plain TOF. Follow fasting instructions if contrast is added.

Will the scan detect a mini-stroke (TIA)?

It shows vessel changes that may have caused TIA, enabling preventive treatment.

Do I need an injection of contrast dye for an MRI Neck Angio (TOF)?

Typically, no. The Time-of-Flight (TOF) technique is specifically designed to visualize flowing blood without the need for an intravenous contrast agent (dye). This makes it a form of Non-contrast MRI angiography of neck. In some specific situations, if the TOF MRA is inconclusive or more detail is needed, your doctor might recommend a follow-up scan that does use contrast, but this is not standard for the initial TOF MRA.

What happens if an abnormality is found on my scan?

If your MRI Neck Angio (TOF) reveals any abnormalities, your referring doctor will discuss these findings with you in detail. They will explain what the findings mean for your specific health situation and recommend the most appropriate course of action, which could include further monitoring, lifestyle modifications, medication, or other treatments.

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MRI Neck Angio (tof)

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MRI Neck Angiography (TOF) Overview

Full form: Magnetic Resonance Imaging Neck Angiography – Time-of-Flight
Principle: Uses powerful magnets and radio waves (no X-rays) to detect blood flow in carotid and vertebral arteries.
Output: High-resolution 3-D images that reveal narrowing, blockages, or abnormal vessels.

List of Parameters

List of Parameters Considered During MRI Neck Angio (TOF)

Vessel diameter at multiple levels
Peak systolic velocity (indirect sign of stenosis)
Signal voids that suggest turbulent flow
Plaque type (calcified vs. soft)
Aneurysm neck & dome dimensions

When to Take Test

Evaluate dizziness or syncope of unknown origin
Check for carotid artery stenosis before cardiac surgery
Investigate pulsatile neck mass
Plan neuro-interventional procedures (coiling, stenting)
Monitor post-surgery vessel patency

Benefits

Benefits of Taking the Test

Zero radiation – safe for children & pregnant women (after 1st trimester)
10–15 minute scan time with Cadabams’ 1.5T & 3T MRI systems
Day-zero digital reports via secure email & app
Sub-millimetre resolution spots early plaques missed on ultrasound
One-stop booking – choose slot, upload prescription, pay online

Illnesses Diagnosed with MRI Neck Angio (TOF)

Condition	What the Scan Shows
Carotid stenosis	% narrowing, plaque character
Vertebral artery dissection	Intimal flap & false lumen
Aneurysm	Sac size, neck width, relation to parent vessel
Arteriovenous malformation (AVM)	Tangle of flow voids
Takayasu arteritis	Long-segment wall thickening

Preparing for Test

Preparing for MRI Neck Angio (TOF)

Pre-requisites

Fasting: Not required for plain TOF; 4-hour fast if contrast is added.
Clothing: Wear metal-free attire or change into provided gown.
Previous films: Bring old scans/CD for comparison.

Best Time to Take the MRI Neck Angio (TOF)

Morning slots reduce waiting time.
Post-symptom onset within 48 hours yields clearer flow data.

Eligibility

Adults & children above 5 years.
Pregnant women after risk-benefit discussion with radiologist.

Procedure for Taking an MRI Neck Angio (TOF)

Check-in at Cadabams Diagnostics reception.
Screening form for implants and allergies.
Positioning – lie supine, head in neck coil.
Scan – loud tapping sounds; earplugs provided.
Review – preliminary images shown on console; repeat sequences if needed.
Exit – collect token for online report link within 3 hours.

Caution Before Taking the Test

Remove jewellery, credit cards, hearing aids.
Inform staff if you have tattoos with metallic ink.
Sedation – arrive 30 minutes early if prescribed.

Risks & Limitations of MRI Neck Angio (TOF)

Risk / Limitation	How Cadabams Manages It
Claustrophobia	Open-bore & wide-bore MRI machines, mild sedation on request
Metal implants / pacemakers	Detailed screening checklist before booking
Gadolinium allergy	TOF sequence is contrast-free; if contrast is added, pre-medication available
Motion artefacts	Head-immobiliser cushion & real-time coaching

Test Results

Results and Interpretations

Finding / Observation	Description	General Interpretation / Significance
Normal flow void	Uniform black tubular lumen	No stenosis
>70 % stenosis	Reduced lumen diameter & post-stenotic flow jet	High stroke risk; refer to vascular surgeon
Wall irregularity	Focal thickening or ulceration	Early atherosclerosis; lifestyle + statins
Aneurysm ≥5 mm	Saccular outpouching	Neuro-intervention planning
Dissection flap	Linear low-signal band splitting lumen	Start antiplatelet; repeat scan in 3–6 months
Flow Abnormalities	Altered flow patterns, such as slow, dampened, or turbulent flow, seen on Doppler or MRA sequences.	May indicate upstream narrowing, downstream obstruction, or abnormal vessel structure. Further evaluation may be required.
Vessel Tortuosity / Kinking	Excessive curving or sharp bends in arterial paths.	Commonly benign and age-related, but significant distortion may influence blood flow or complicate procedures (e.g., catheterization)
Congenital Vascular Anomaly	Unusual vessel origin or branching pattern (e.g., aberrant vertebral artery course).	Often an incidental finding. May be relevant if associated with symptoms or procedural planning.

FAQs

No. You simply lie still; there are no needles unless optional contrast is used.

Centre visit

MRI Neck Angio (tof)

MRI Neck Angiography (TOF) Overview

List of Parameters Considered During MRI Neck Angio (TOF)

When to Take Test

Benefits of Taking the Test

Illnesses Diagnosed with MRI Neck Angio (TOF)

Preparing for MRI Neck Angio (TOF)

Pre-requisites

Best Time to Take the MRI Neck Angio (TOF)

Eligibility

Procedure for Taking an MRI Neck Angio (TOF)

Caution Before Taking the Test

Risks & Limitations of MRI Neck Angio (TOF)

Test Results

FAQs

Is MRI Neck Angio (TOF) painful?

How soon can I drive after the scan?

Can I eat or drink before the test?

Will the scan detect a mini-stroke (TIA)?

Do I need an injection of contrast dye for an MRI Neck Angio (TOF)?

What happens if an abnormality is found on my scan?

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