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Doctor insights on: Mra False Positive Basilar Stenosis

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What's more accurate for carotid stenosis ultrasound or mra?

What's more accurate for carotid stenosis ultrasound or mra?

CTA and: Conventional angiography are best for carotid artery stenosis imaging. Ultrasound or Doppler is a great screening test and typically is performed first. MRA often overestimates carotid stenosis due to turbulent flow in areas of narrowing. MRA best for carotid dissection and for patients that cannot receive X ray contrast. CTA is used more often due to invasive nature of conventional angiography. ...Read more

Stricture (Definition)

A stricture is an anatomic narrowing of any structure in the body with a lumen. Depending on the organ, the underlying causes can be traumatic, ...Read more


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Vl carotid bilat post TIA found:l internal carotid stenosis 50-79% by velocity. F/u with neck contrast mra, shows nothing normal study! How can it be?

Vl carotid bilat post TIA found:l internal carotid stenosis 50-79% by velocity. F/u with neck contrast mra, shows nothing normal study! How can it be?

Velocity accurate: Most likely accurate ultrasound.

Repeat at 6 months.
Unlikely a dissection with resolution- but possible. Or increased flow after tia? Would be unusual.
Mra has value but some limitations of stenosis measurements. ...Read more

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33 year old female with hypertension and received mra results that show mild to moderate vertebral artery stenosis. What does this mean usually?

33 year old female with hypertension and received mra results that show mild to moderate vertebral artery stenosis. What does this mean usually?

Need to be watched: Means you have early narrowing of blood vessels in your neck. Which can progress and cause further narrowing and increase risk of stroke. No surgery needed now, but you have to be on high doses if statins and an Aspirin a day. Repeat carotid doppler every 2 years. If you have high blood pressure or diabetes, should be well controlled. ...Read more

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Kidney function worsens on benicar (olmesartan) 20 mg (scr 1.6 to 2.6 in a month) but proteinuria improves. No stenosis in us. Need MRA? Low aldosterone, ok renin.

Kidney function worsens on benicar (olmesartan) 20 mg (scr 1.6 to 2.6 in a month) but proteinuria improves. No stenosis in us. Need MRA? Low aldosterone, ok renin.

Depending. ..: What and how the evaluation should be done for individuals should be based on the conclusion of detailed history, physical exam, and preliminary testing. As to yours, which one you need can be deduced by your treating doctor & consultants. Elevating creatinine suggests some impairing blood perfusion through kidneys by fluid contraction + already marginal renal function. More? Ask your doctors... ...Read more

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My cervical mra results are: left vertebral artery demonstrates short segment focal high grade stenosis in mid portion. What does this mean? Surgery?

My cervical mra results are: left vertebral artery demonstrates short segment focal high grade stenosis in mid portion. What does this mean? Surgery?

Possibly surgery.: For a young, asymptomatic female it may be the focal stenosis, (narrowing) is developmental, and no rx is needed. However, if there are neurologic symptoms referralable to brain stem function, this finding may indicate need for surgical or neurointerventional treatment. ...Read more

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How can a dopplar test and mra on a carotid artery show different results dopplar-no blockage mra-severe stenosis happened to my husband now cta next?

Doppler: Is technician dependent and mra can sometime overestimate the degree of stenosis. Cta is the test of choice for carotids. Angiogram remains the gold standard but not commonly done any more since it is more invasive and does carry a small risk of stroke. ...Read more

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I am a 33 yr fit female with hypertension, white matter changes on MRI and vertebral artery stenosis found in mra. Could I have a stroke soon?

I am a 33 yr fit female with hypertension, white matter changes on MRI and vertebral artery stenosis found in mra. Could I have a stroke soon?

Perhaps.: You are probably at higher risk than average for having a stroke. I would recommend taking an adult aspirin a day and modify your risk factors (blood pressure control, healthy diet, weight loss, smoking cessation, cholesterol control, etc.). Speak to your physician for more information. ...Read more

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33 yr old female with hypertension and vertigo, blurry vision and chronic pain. Mra of spine shows vertebral artery stenosis. Could this mean surgery?

It's theLast resort: The first step is to determine if any of your symptoms are related to the stenosis. The next question is the severity of the stenosis. If you have no weakness, cramping, claudication (symptoms with exercise). This may not be the cause of your problems. You should see a doctor with experience in this problem. ...Read more

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Weakness in left hand. Sent for stat ct-inconclusive-concern over blockage of basilar artery-sent for mri/mra - insur. Denied mra-still get results?

Weakness in left hand. Sent for stat ct-inconclusive-concern over blockage of basilar artery-sent for mri/mra - insur. Denied mra-still get results?

Who is concerned?: Are you concerned or your doctor? I really don't think based on what you've told me that there is any basilar artery issues -- if there is a problem there, symptoms include vertigo, double vision, and balance issues. Best to discuss with your doctor. ...Read more

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How often should I have a mra I had one done dec 2012 it was normal?

How often should I have a mra I had one done dec 2012 it was normal?

Why want followup?: If the last mra was normal, there is no need for follow up unless there is some concern for an increased risk of aneurysm due to genetics, pre-existing condition or family history. If any of those are possible, then consider followup in 1 year. ...Read more

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What is the difference between MRI & mra?

What is the difference between MRI & mra?

Angiogram: MRA is an angiogram specifically looking at the blood vessels traversing a particular area like the neck or brain. MRI looks at the organ as a whole and is best for nerve tissue like the brain, spinal cord, and also gives great images for joints. ...Read more

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Do I need to get an IV when I get an mra/mri?

Do I need to get an IV when I get an mra/mri?

Contrast injection: For an mra, you will get an intravenous injection of contrast during the exam. ...Read more

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Is an open mri/mra with contrast as good as a closed one?

Generally no: Better if claustrophobic only advantage. Closed generally higher resolution also depends on magnet size. ...Read more

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Can a mri/mra help in diagnosis of mental health disorders?

Can a mri/mra help in diagnosis of mental health disorders?

MRI is sometimes. .: Useful in mental health situations, especially if there is a history of head trauma, or if there is concern for an anatomic/structural cause for the disorder, like a congenital anomaly (a problem that developed before birth) or a tumor.

Mra would not necessarily be helpful unless the situation or MRI results pointed to a vascular (blood supply) problem. ...Read more

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Can mra see bone spurs?

Can mra see bone spurs?

Yes, but not well: Mra is a specific type of mri, tailored to look specifically at blood vessels. Though an mra can see adjacent muscles, bones and other organs, a dedicated musculoskeletal MRI or ct would be better for looking for bone spurs. ...Read more

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Does an MRA of the chest use radiation?

Does an MRA of the chest use radiation?

Technically yes: MRI uses electro-magnetic fields which are technically a type of low energy "radiation". There is severe risk if there is metal in the body such as a sliver from an eye injury or some implants.
Clinically concerning radiation is much higher energy and related to x rays, gamma rays, proton or particle therapies, etc. This energy is enough to cause DNA damage. ...Read more

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How to read mra angiography brain report?

How to read mra angiography brain report?

MRA report: Post a specific question about the report on HealthTap. ...Read more

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Is an mra of the heart just as good as a cta of the heart?

Is an mra of the heart just as good as a cta of the heart?

Not yet: Advantages: no need for iodine based contrast, no radiation

disadvantages: not fast enough to handle moving structure like the heart. Better for still objects. ...Read more

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Should I get an mri/mra for my head pain and dizziness?

Should I get an mri/mra for my head pain and dizziness?

WHY?: Most imaging studies are fully negative in 98% of all patients with migraine, and do not change the symptoms or outcomes at all. You are far better off to locate a neurologist, get this fully evaluated, and treated, as numerous approaches can both prevent and abort migraine headaches. Also, your dizziness could be part of migraine also. ...Read more

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How to read mra angiography report?

How to read mra angiography report?

Results: You can discuss the report with your doctor, or you can post a specific question about the report on HealthTap. Or, message a HealthTap doc for a more in depth discussion. ...Read more

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How long does intracranial mra procedure take?

It depends on MRI: Depends on type of MRI unit. The "high field" MRI machines are faster. The open design machinies are usually slower. Also depends on if it's with and/or without intravenous contrast. ...Read more

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What's a mra? If I've had one done dec.2012 should I b worried bout a anerusym my scan in dec was normal can they see anuersyums

What's a mra? If I've had one done dec.2012 should I b worried bout a anerusym my scan in dec was normal can they see anuersyums

MRA: Mra stands for magnetic resonance angiography. Yes that is a test that is used to look for aneurysms. If that did not see an aneurysm, you should feel comfortable that you do not have one. ...Read more

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What iss mra/mr arthrogram?

What iss mra/mr arthrogram?

MRI: After the injection of gadolinium into the joint being examined. See radiologyinfo. Org. ...Read more

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What are the differences between an mri, mra and mrcp?

What are the differences between an mri, mra and mrcp?

See below: These tests are used to look at different structures in the body. Mri can look at soft tissues, brain, spine, joints and others. Mra looks at vessels. Mrcp looks at the bile ducts in the liver and the pancreatic ducts. ...Read more

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Would it be worthwhile to have an mra test done to try to spotlight any potential arterial problems

Would it be worthwhile to have an mra test done to try to spotlight any potential arterial problems

See below: Not suggested as purely a screening study.
A good history and physical as well as evaluation of risk factors should be done first. ...Read more

Dr. John Landi
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Stenosis (Definition)

Constriction or narrowing of something - duct, artery, passage way such as the outlet of the stomach into the small ...Read more