MRI ANGIOGRAM/ VENOGRAM (MRA/MRV)
Also Known As
SENIOR
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FAMILY
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Certified Labs
NABH Accredited
Reports in
6hrs
Measures
No description available
Identifies
No identification information available
About The Test
Need a closer look at the blood vessels inside your head or neck? Cadabams Diagnostics offers a fast, painless MRI Angiogram/Venogram (MRA/MRV) — no surgery, no radiation, and results ready within hours. Scan time is only 20–40 minutes, and you can book online in under two minutes.
List of Parameters
| Parameter | What We Measure |
|---|---|
| Vessel lumen diameter | Width of the artery/vein |
| Flow velocity | Speed of blood movement |
| Stenosis % | How much vessel is narrowed |
| Thrombus presence | Blood clots |
Why This Test
- Detecting aneurysms – ballooning artery walls before they rupture
- Evaluating venous sinus thrombosis – clots in brain veins that mimic migraine
- Monitoring vasculitis – inflamed vessels causing daily headaches
When to Take Test
Benefits
Benefits of Taking the Test
- Zero radiation – safe for children and repeated follow-ups
- High-resolution head vessels – see 1 mm abnormalities
- Single exam covers MRA MRV head – arteries and veins in one appointment
Illnesses Diagnosed with MRA/MRV
- Carotid stenosis
- Dural sinus thrombosis
- Arteriovenous malformations (AVMs)
Preparing for test
Fasting Guidelines
- Nothing by mouth 2 h before if contrast is planned
Metal Implant Screening
- Fill safety questionnaire; bring implant card
Best Time to Schedule Exam
- Morning slots = shorter fast and quicker report
Pre-Requisites
- Recent eGFR blood report (if contrast needed)
- Previous imaging CDs for comparison
- Documented allergy history
Best Time to Take the Test
- Morning slots – lower waiting time and full radiologist support
- Emergency stroke protocol – 24×7 availability with neurologist on call
Eligibility
- Adults and children above 5 years (younger kids need sedation)
- Pregnancy: MRA without contrast is safe; consult your doctor
- Weight limit: 150 kg (330 lb) table capacity
Procedure for Taking an MRI Angiogram/Venogram
- Check-in & IV line – 10 min
- Scanning steps – lie still for 20–40 min; expect loud knocking sounds
- Post-contrast observation – 15 min to watch for rare reactions
Caution Before Taking the Test
- Contrast allergy? Pre-medication provided
- Renal function below threshold? We switch to non-contrast sequences
- Severe claustrophobia? Oral sedation available—bring an escort
Test Results
Results and Interpretations
| Finding / Observation | Description | General Interpretation / Significance |
|---|---|---|
| Carotid lumen | 5–7 mm | <2 mm = severe stenosis |
| Flow void | Present | Absent = possible clot |
| Stenosis % | 0–49 % | ≥70 % may need surgery |
| Venous sinus | Patent | Filling defect = thrombosis |
| No evidence of significant vascular malformation | No arteriovenous malformation (AVM), fistula, or abnormal vascular tangle identified. | Rules out major congenital or acquired vascular anomalies in the region; lowers concern for hemorrhagic events or seizures due to vascular causes. |
| Patent renal arteries bilaterally | Right and left renal arteries appear normal in caliber and enhance well with contrast, without signs of narrowing. | Suggests adequate renal perfusion and makes renovascular hypertension less likely. |
| Chronic occlusion of the left superficial femoral artery | Complete blockage of the left superficial femoral artery, with visible collateral circulation around the occluded segment. | Indicates established peripheral artery disease; presence of collaterals shows vascular adaptation. Management depends on symptoms and functional impact. |
Risks & Limitations
Contrast Dye Cautions
- Rare allergy (<1 %)
- Requires good kidney function (eGFR ≥30)
Magnetic Field Restrictions
- Pacemakers, cochlear implants, and certain aneurysm clips may be unsafe
Claustrophobia Solutions
- 70 cm wide-bore scanner
- Mirror glasses, music, or mild sedation on request
FAQs
Is an MRA/MRV scan painful?
No injections feel like a routine blood test; the scan is painless.
How long does an MRA/MRV scan usually take?
An MRA/MRV scan typically takes between 30 to 90 minutes. The exact duration depends on the specific body part being scanned, the number of imaging sequences required for a comprehensive assessment, and whether contrast is administered.
How soon are results available?
Most patients receive reports the same evening; emergency cases within 30 minutes.
What is the main difference between a regular MRI and an MRA/MRV?
While both regular MRI and MRA/MRV use the same fundamental MRI technology (magnets and radio waves), MRA/MRV uses specialized software and imaging sequences optimized to visualize blood vessels (arteries for MRA, veins for MRV). A regular MRI focuses on imaging general organs, soft tissues, bones, and other structures.
Can I drive after contrast?
Yes, unless you take sedation. In that case, bring a friend to drive home.
How much does an MRA/MRV scan cost at Cadabams Diagnostics?
The cost of an MRI Angiogram/Venogram (MRA/MRV) scan varies. Factors influencing the price include the specific body part imaged, whether a contrast agent is used, and the complexity of the study. For detailed pricing information, contact Cadabams Diagnostics directly.