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Doctor insights on: Brain Mri Without Contrast

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Would a brain MRI without contrast show everything?

Would a brain MRI without contrast show everything?

No: Imaging studies do not show "everything".
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Dr. Ihab Ibrahim
5 Doctors shared insights

Mri (Definition)

Mri or magnetic resonance imaging is one of the more recently developed imaging modalities available to physicians. It uses powerful magnets to generate images. There is no ionizing radiation which is a major advantage over many other modalities. Mri is the best imaging exam that we have for most soft tissue and joint related problems. There are radiologists ...Read more


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Would a brain MRI without contrast be sufficient for symptoms of facial numbness? Thank you

Would a brain MRI without contrast be sufficient for symptoms of facial numbness? Thank you

A start: You may or may not see a structural explanation for your symptoms, but MRI of brain is an excellent initial evaluative procedure. ...Read more

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Can a brain mri without contrast detect signs of MS?

Can a brain mri without contrast detect signs of MS?

Yes, it can: MRI is definitely terrific in demonstrating MS lesions. The newer ones which would be contrast positive allow us to make treatment decisions and changes. The older lesions can be seem chronically on a non-contrast MRI. ...Read more

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Are there any side effects to a brain mri without contrast?

Are there any side effects to a brain mri without contrast?

No significant risks: The equipment may be closed and narrow causing claustrophobia in some, and the high intensity magnets might slightly increase body temperature transiently, but otherwise, quite benign test. ...Read more

Dr. Alan Ali Dr. Ali
1 doctor agreed:
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Can white matter lesions be seen on a brain MRI without contrast?

Dr. Alan Ali Dr. Ali
1 doctor agreed:
Can white matter lesions be seen on a brain MRI without contrast?

MRI: Majority of WM lesions are visible on MRI, depending on type & size & location. ...Read more

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Brain MRI without contrast - what kinds of things might be missed without contrast?

Brain MRI without contrast - what kinds of things might be missed without contrast?

Tumors and anuerysms: A tumor may not be seen unless contrast is administered. Also, any abnormality of the arteries or veins of the brain may not be visible without contrast. Contrast improves specificity and sensitivity of the MRI and should be used when possible. ...Read more

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I had a negative brain mri without contrast. Do I need one with contrast or only if they saw something? Are the chances of ms lower?

I had a negative brain mri without contrast. Do I need one with contrast or only if they saw something? Are the chances of ms lower?

Comments: Negative brain MRI is very much against MS, but if concerns persist, a cervical MRI should be sought. Lack of contrast may be minor issue, as this would highlight newer lesions, but not miss older lesions. Chance, so far, of MS is very low, but to be complete, if symptoms are compelling, repeat images at 6 months. ...Read more

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Is a brain mri without contrast as effective in finding the problem such as brain damage?

Is a brain mri without contrast as effective in finding the problem such as brain damage?

Yes: An mri without contrast can be a valuable tool. Also ask your doctor about Diffusion Tenson Imaging, a newer test that is a valuable tool in assessing brain damage. ...Read more

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Dr wants to do brain MRI without contrast but I heard with contrast is more accurate so what do I do? Looking for tumor, bleed, and stroke

Dr wants to do brain MRI without contrast but I heard with contrast is more accurate so what do I do? Looking for tumor, bleed, and stroke

MRI of neck: The use of contrast is really based on what the physician is looking for, for tumor or stroke it can be more helpful, for a bleed that shows up without contrast, I would discuss this further with your physician and see what the thinking might be. ...Read more

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I had a brain MRI without contrast after hitting my head that was "normal". Would it have shown increased pressure or bleeding without contrast?

I had a brain MRI without contrast after hitting my head that was "normal". Would it have shown increased pressure or bleeding without contrast?

CT w/o contrast: MRIs ate great but not the gold standard for strokes or bleeding. A CT w/o contrast is usually what is used to determine if you are bleeding in your brain. In any event Imagining is only a small part of the puzzle, your history plus how you hit your head and your current symptoms plus vital signs all need to be looked at together. IF Recurring symptoms or worsening get to ED/ urgent car ...Read more

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18 y/o, given brain MRI without contrast (to rule out demyelinating disease) and the results were normal aside from some subtle nonspecific T2/FLAIR hyperintensity seen in the periatrial region bilaterally? What does this mean/should I be worried?

18 y/o, given brain MRI without contrast (to rule out demyelinating disease) and the results were normal aside from some subtle nonspecific T2/FLAIR hyperintensity seen in the periatrial region bilaterally? What does this mean/should I be worried?

Why ask here?: Presumably you didn't just pass an MRI facility & decided to go in and make an impulse purchase. A doctor had to order the MRI, one who knows you. It's his/her responsibility to interpret the MRI findings as part of your overall clinical picture, or if he/she can't, to find someone who can. The MRI isn't the patient; you are. ...Read more

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I am getting a brain MRI without contrast. What sort of things can this pick up?

I am getting a brain MRI without contrast. What sort of things can this pick up?

Good details without: An MRI without contrast can see exquisite architectural detail of the brain but it may be having difficulty with picking up small masses. ...Read more

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Can cryptococcal meningitis be detected with a brain MRI without contrast?

Can cryptococcal meningitis be detected with a brain MRI without contrast?

Surveillance: Is an important tool in the identification of cryptococcal infections in high risk populations. Guidelines can be found here: http://whqlibdoc. Who. Int/publications/2011/9789241502979_eng. Pdf
In the general population symptoms and physical findings would result in a diagnostic spinal tap to make a diagnosis. MRI is indicated when the immune status of the infected individual precludes an inflammatory of antibody response. In that situation an MRI WITH contrast is necessary to identify the presence of infection. ...Read more

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I had a brain MRI without contrast but am continuing to have moderate to severe headaches. Are there any other diagnostic tests that I should ask for?

No. See Neurologist.: ... or use HealthTap Prime. Doctors have been diagnosing headaches for CENTURIES before the invention of MRI. The accuracy of diagnosis is still the same, but our treatments have improved since 1940s. Talk to a neurologist with a diary / description of your headache symptoms. They will assuredly get you a diagnosis & find the proper treatment. They probably don't need any more tests. Good luck! ...Read more

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Does a normal brain MRI without contrast show blood vessel abnormalities or do you need another test like an MRA?

Does a normal brain MRI without contrast show blood vessel abnormalities or do you need another test like an MRA?

Depends on question: Common misconception: MRI (or MRA) doesn't "see everything". ANY imaging test used to help confirm a diagnosis has limitations & doesn't establish Dx from "thin air". MRI can see SOME of the effects of blood vessel abnormalities (like scarring or infarction) & perhaps large abnormalities like aneurysms, but isn't the best test to determine blood flow. So it depends on clinical question being asked ...Read more

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Would a Brain MRI without Contrast & a CT Scan with and without Contrast show a brain tumor causing symptoms? Worried that it could have been missed.

Would a Brain MRI without Contrast & a CT Scan with and without Contrast show a brain tumor causing symptoms? Worried that it could have been missed.

No symptomatic tumor: It is a pretty safe bet that MRI together with contrast CT can exclude a symptomatic tumor (mass) in the head. That does not mean all causes of headache or neurologic complaint are seen. Only your practitioner can give more advice to "put your mind at ease" and further direct your diagnostic journey. ...Read more

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What diseases cause hand paresthesia and swelling (in the MS mimic) catagory? I've been having a lot of symptoms that are classic MS symptoms but have not been diagnosed. My brain MRI without contrast was normal. One neurologist sd it was anxiety and to s

What diseases cause hand paresthesia and swelling (in the MS mimic) catagory? I've been having a lot of symptoms that are classic MS symptoms but have not been diagnosed. My brain MRI without contrast was normal. One neurologist sd it was anxiety and to s

Some of the options: Cervical radiculopathy, transverse myelopathy, ulnar / radial / median nerve impingement (incl carpal tunnel syndome), brachial plexopathy, peripheral neuropathy (there are many causes), and vascular disorders, such as calciphylaxis.

I agree that carpal tunnel syndrome is #1 - and should be a place to start. A normal brain MRI does help put MS aside. ...Read more

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If I had a pituitary adonema would a standard brain MRI with and without contrast show it?

If I had a pituitary adonema would a standard brain MRI with and without contrast show it?

Maybe: Pituitary adenomas MRIs are very specific protocols. If you have a 'macroadenoma' which is larger than the normal gland, a routine MRI protocol would still likely show this. However, 'micoadenomas' can be only a few millimeters in size and a routine brain protocol MRI could miss it based on scan slice thickness or it may not stand out within the normal tissue. ...Read more

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Would a brain MRI with and without contrast show problems with sinuses (cyst or tumors)or do they have to order MRI specifically for the sinuses?

Would a brain MRI with and without contrast show problems with sinuses (cyst or tumors)or do they have to order MRI specifically for the sinuses?

Sinuses: When you have a head scan either CT or MRI the radiologist will sometimes comment on sinuses. However, to take a complete look at the sinuses usually need a scan ordered specifically for that. ...Read more

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Does a brain MRI need contrast to look at chirari?

Does a brain MRI need contrast to look at chirari?

No: Noncontrasted MRI is the test of choice to radiographically diagnose Chiari's. Be aware that there is something called PHASE-CONTRAST MRI or abbreviated PC-MRI. This imaging technique can be used (and is very useful in some cases when looking at headaches associated with Chiari's) to image the malformation. It DOES NOT utilize IV-contrast though the word "contrast" is in the name of the test. ...Read more

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Will an MRI on brain without contrast show if there is inflammation from meningitis?

Will an MRI on brain without contrast show if there is inflammation from meningitis?

Not necessarily.: Bacterial meningitis is a devastating disease that must be caught early to prevent permanent damage or even death. In the beginning stages the only way to make the diagnosis is with a lumbar puncture commonly called a spinal tap. Neuro imaging studies are useful to monitor for complications such as abscesses and brain swelling and can pick up meningitis later in the disease process. ...Read more

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If a radiologist decides not to use contrast during a brain Mri, does it indicate that they have seen nothing abnormal?

If a radiologist decides not to use contrast during a brain Mri, does it indicate that they have seen nothing abnormal?

Not: Necessarily. That is one possibility. However, it could also be possible that the non contrast MRI already specifically delineates a particular abnormality, and no contrast is necessary, or that the indication for the MRI is such that contrast would not be routinely employed. ...Read more