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Doctor insights on: Mra Carotid And Or Vertebral With And Without Contrast

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Can tear in vertebral and carotid arteries ever be seen on a cervical MRI? Or does it HAVE to be MRA or MRV?

Can tear in vertebral and carotid arteries ever be seen on a cervical MRI? Or does it HAVE to be MRA or MRV?

Cervical MRI: would not be adequate, further studies would be necessary even if the cervical MRI by chance happened to demonstrate a possible abnormality like a dissection or vascular injury ...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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What's more accurate, a color carotid doppler ultrasound or a contrast coratid mra?

What's more accurate, a color carotid doppler ultrasound or a contrast coratid mra?

Both good: Ultrasound is a good screening test. Can give idea about plaque make up. Mra shows flow but can overestimate amount of stenosis. Cta best if ultrasound not normal. ...Read more

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What is more accurate, a color carotid doppler ultrasound or a contrast carotid mra?

What is more accurate, a color carotid doppler ultrasound or a contrast carotid mra?

Carotid: A carotid doppler is a good screening procedure. A mra or cta of the carotids is more accurate but not the way to screen patients. ...Read more

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Carotid mra vs carotid doppler ultrasound better predictor?

Carotid mra vs carotid doppler ultrasound better predictor?

Doppler Ultrasound: Ultrasound has proven to be cost-effective and quite accurate in determining the degree of narrowing in the carotid artery. Many vascular surgeons, including myself, solely rely on it to decide whether someone needs an operation. Mra is not so good and over-estimates the actual degree of narrowing. I would not rely on its findings to decide on operating. As mentioned a cta is much better. ...Read more

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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

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