Top
20
Doctor insights on: What Is A Mri Of The Brain

Share
Dr. John Landi
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


3

3
I have twitching/spasms in my right calve that I can see going nuts all day for a couple weeks, what is this?.mri of brain norm, emg was normal?

I have twitching/spasms in my right calve that I can see going nuts all day for a couple weeks, what is this?.mri of brain norm, emg was normal?

Muscle twitch: It may be as simple as you are exerting the muscle too much with activity, you may consider decreasing calf exercises for a week to see if that helps resolve the issue. Unlikely an electrolyte abnormality as only in one calf, not both. ...Read more

4

4
What if a recent MRI on brain read venous differnetial in the opptiucal lobe, could it be a brain tumor starting have been having trouble speaking?

What if a recent MRI on brain read venous differnetial in the opptiucal lobe, could it be a brain tumor starting have been having trouble speaking?

Question unclear: I'm sorry, your question is just not clear and can't be sensibly answered. A tumor in one of the occipital lobes is not likely to cause difficulty speaking unless it was large enough to be clearly visible on an mri. I think "venous differential" is a mis-quotation. Perhaps the report read "deep venous anomaly" or "venous hemangioma"? These are benign conditions. Ask your doctor to clarify. ...Read more

See 1 more doctor answer
5

5
What is the purpose of MRI of the brain and the orbit?

What is the purpose of MRI of the brain and the orbit?

That depends: Basically to better evaluate the brain and orbits than you would see with a ct scan. Subtle findings are better seen with an mri- and it is frequently ordered after a negative ct scan. The combo 'brain and orbits' MRI is often ordered by physicians looking for signs of multiple sclerosis ( i would ask your doctor why they ordered it ). ...Read more

6

6
I feel very lightheaded i don't no what to do had normal MRI of the brain on 4-18-13 scared please he'lp?

I feel very lightheaded i don't no what to do had normal MRI of the brain on 4-18-13 scared please he'lp?

You are still too : Young to be concerned about serious medical conditions. Dizziness is a very common complaint among our patients and oftentimes they are benign and not serious. Yours may be from anxiety, panic attacks, drop in blood pressure with sudden standing up or head turning, inner ear problem, sleep deprivation, medication side effect etc.If all work up are negative, then say to yourself, i'm not dying yet. ...Read more

See 1 more doctor answer
7

7
What do dark areas on MRI brain mean?

What do dark areas on MRI brain mean?

depends: "dark" areas can mean different things on different sequences in a given mri. The normal brain is dark on some sequences, such as the attached picture. Please rephrase your question for a better answer. ...Read more

8

8
What is the explanation of MRI BRAIN left thalamic and internal capsule infarction?

What is the explanation of MRI BRAIN left thalamic and internal capsule infarction?

MRI brain w infarct: This study should be discussed thoroughly with the doc. Diagnosis can't be made w/o clinical correlation. An infarct is a stoke, caused by lack of blood flow to the named areas leading to cell death. A l thalamic infarct should result in either behavioral/cognitive changes or sensorimotor deficits, or both. Internal capsule infarct may result in facial paralysis, arm weakness, & sensory loss. ...Read more

See 1 more doctor answer
12

12
What is prognostic value of MRI of brain in child with near drowning and normal CT brain?

MRI more accurate: Neuroimaging techniques can add valuable information (MRI) shows characteristic patterns depending on severity of the injury and also timing of imaging. Degree of edema and brain swelling is better seen by MRI than by computer tomography, therefore CT scans are not widely used for early outcome prediction. ...Read more

See 2 more doctor answers
13

13
What areas of brain does "mri brain stem w/o dye" image or cover?Is mra included in above and does it like mra image or look for cerebral aneurysm?

What areas of brain does "mri brain stem w/o dye"  image or cover?Is mra included in above and does it like mra image or look for cerebral aneurysm?

Whole brain stem: The MRI would look at your entire brainstem, shown in the picture. The brainstem is the lower part of your brain that controls breathing and heartrate. An mra (magentic resonance angiogram) is not the same, and would be ordered as a separate test with dye injection. An mra looks at blood vessels for aneurysyms, obstructions, or tears, while an MRI looks for tumors, demyelination, or strokes. ...Read more

See 1 more doctor answer
14

14
What does it mean when a MRI (brain) says there are ten small t2 hyperintense foci within the periventricular deep white matter?

What does it mean when a MRI (brain) says there are ten small t2 hyperintense foci within the periventricular deep white matter?

Why was MRI done?: The spots could well be associated with prior head injury , migraine, cigarette smoking, hypertension, but could be c/w ms. Return to your doctor and spend some sufficient time to clarify significance in your case. ...Read more

See 1 more doctor answer
15

15
What is a brain mri?

What is a brain mri?

Magnetic imaging: MRI is a way to see what is happening with in the brain. The machine use magnetic waves to generate the information that is displayed on a computer screen. This is different than CT which uses X-rays to get the image ...Read more

16

16
How can a brain MRI be done?

How can a brain MRI be done?

MRI: You will be asked to rest on your back and not move your head during the mri. You will be moved into the scanner. The MRI machine has enormously powerful magnets which will orient hydrogen molecules into a single direction. When a when the magnet energy is changed, the hydrogen atoms give off energy which will be picked up by the computer. ...Read more

17

17
When a brain MRI is necessary?

See long answer: Your dr. Needs to exam you, and place the need for imaging, such as a “brain mri” in appropriate clinical context. There are detailed criteria that are used in making this determination. You can view them on the website for the american college of radiology appropriateness criteria: http://www.Acr.Org/quality-safety/appropriateness-criteria/diagnostic. ...Read more

See 1 more doctor answer
18

18
How long can a brain MRI take?

How long can a brain MRI take?

30-40 minutes: For most sequences it can be done in 30-40 minutes, longer if more images are taken. Ct scan is quick, usually only several minutes, but involves low level radiation. You trade image quality for speed. ...Read more

19

19
How long does it take for a brain mri?

How long does it take for a brain mri?

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. ...Read more

See 1 more doctor answer
20

20
What are the dangers caused by a brain mri?

None: They will give you screening form to assess for any possible contraindications but assuming three are none, its very very safe. ...Read more

See 1 more doctor answer