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A 31-year-old member asked:

can mri contrast dye have side effects?

2 doctor answers3 doctors weighed in
Dr. Frederick Rupp
Radiology 34 years experience
Rarely.: Rare allergies. Very rare nsf if poor kidney function.
Dr. Corinne Deurdulian
Radiology 22 years experience
Yes but rare: Mri contrast can have side effects but they are extremely rare. Contrast side effects are more common with ct.

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Similar questions

A 34-year-old member asked:

What are EEG and MRI used for in evaluating seizures?

2 doctor answers3 doctors weighed in
Dr. Felix Brizuela
Neurology 32 years experience
Function and structu: Eeg confirms whether or not there is a short circuit that could be detected in the brain to confirm whether you are having seizures. Many times, however, the short circuit is missed on routine eeg.If we are suspicious enough, sometimes we just treat. Mri helps to see if you can identify the cause of the short circuit. Such as an old stroke, scar tissue due to trauma or something more serious.
A 31-year-old member asked:

How long does it take for a brain mri?

2 doctor answers2 doctors weighed in
Dr. Julian Bragg
Neurology 17 years experience
20-60 minutes: It varies depending on how many sequences are required. A basic scan runs about 20 minutes, but if the scan requires specialized looks at specific areas (such as the pituitary, the temporal lobes, or the orbits), or if additional sequences with contrast agent are needed, it can take significantly longer.
A 32-year-old member asked:

What are the dangers caused by a brain mri?

2 doctor answers2 doctors weighed in
Dr. Jonathan Dissin
Neurology 39 years experience
MR imaging is safe: There are no inherent dangers caused by the magnetic field on the brain. However, a number of items can interfere with mr imaging and some may be hazardous, these include older brain aneurysm clips, cardiac pacemakers/aicd/defibrillators, implanted medicine pumps, tens unit, bullet fragments/pellets/shrapnel, embolization coils, etc. Claustrophobic patients find MRI difficult to without medication.
A 37-year-old member asked:

What can a mra detect that a brain MRI cannot detect?

3 doctor answers9 doctors weighed in
Dr. Jonathan Dissin
Neurology 39 years experience
Vascular disease: Mra looks at moving blood in the arteries of the brain and can help in the diagnosis of vascular narrowing from atherosclerosis, or anerysms, and arteriovenous malformations (avm). Though an MRI may detect large aneurysms and if contrast is given suggest avm, mra is much more sensitive than MRI when investigating vascular anatomy. Mra does have its limits, small aneurysms can't be detected.
Dr. Philip Chao
Dr. Philip Chao commented
Radiology 38 years experience
MRA are always improved by doing them at higher field strength. 3T is the best clinically available strength for MRA.
May 11, 2013
A 50-year-old member asked:

When do they need a CT or MRI to detect ivh?

2 doctor answers3 doctors weighed in
Dr. Andrew Nordine
Pediatrics 20 years experience
Almost never: Computed tomography (ct) and magnetic resonance imaging (MRI) are not necessary to detect intraventricular hemorrhage (ivh). They are useful if bleeding is suspected in other areas of the brain or if other malformations are suspected. Ivh can be easily characterized by bedside ultrasound which risks neither the radiation exposure nor procedural sedation typically necessary for ct or mri.

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Last updated Jul 15, 2020
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