What is MRI?

Magnetic resonance imaging (MRI), nuclear magnetic resonance imaging (NMRI), or magnetic resonance tomography (MRT) is a medical imaging technique used in radiology to investigate the anatomy and physiology of the body in both health and disease. MRI scanners use magnetic fields and radio waves to form images of the body. The technique is widely used in hospitals for medical diagnosis, staging of disease and for follow-up without exposure to ionizing radiation.

Questions and answers on "MRI"

My 20 yr. old son had a mri done with contrast. When I viewed a side view I noticed a black round spot on the back of his head above the brain stem. Can you give me any indication as to what this may show? It looks like there should be a noticeable lump protruding from the back of his head, although this is not the case. Any info would be appreciated.
The reporting of MRI involves viewing images aquired in various planes (vertical, horizontal etc), with various settings (T1, T2 etc). The appearance of same structure may vary greatly in different sequences (like white vs black). So it may be difficult to comment on the MRI from the...
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I am having an MRI of my head and neck next week. I am a diabetic. I read that the the chances of damage to my kidneys are higher being a diabetic. Also I have dizzy spells and they may get worse after an MRI. Last I have a big lump on the back of my neck. I read it may get larger after an MRI. The dr. that order the MRI is aware of these things. Need some answers Thank you
Hi, welcome to our site. I am Dr Saumya Mittal.

Read your query. That is a very significant question and i appreciate your problem. I will try my best to answer your query

First, it is not like MRI is going to increase the size of your lump. There is no valid explanation behind that and this is...
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I just had an MRI done on my right clavicle and I m sitting here looking at the images, but I have no idea what I m looking at. I have a large lump on my R clavicle (about 4 x2 ), it s solid and feels like it could be a bone. It does not hurt. An xray showed that it was soft tissue swelling so my Dr sent me for an MRI. After the MRI the nurse gave me a disk just in case I need to see a specialist. I have gotten an MRI before, and that did not happen. So... I m sure my Dr will call me tomorrow, but in the mean time, I m losing my mind. I dont know how many more times I can go through these images, comparing them to google... so... my question for you is,,, Should I be worried? The MRI shows a large black spot over the area.
Thank for asking to HCM
I really appreciate your concern, you have not given complete detail of the swelling like since how long it is being there does it have any clinical complain your age and gender are also not given, these are the important detain should have been given here without these...
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I m 24 y/o and I d like to understand my MRI report of my brain as it below technique = Axial T1, T2,Flair = Coronal T2 = Sagittal t1 findings - Normal ventricular system shape and configuration with well maintained basal CSF cisterns -well maintained normal grey / white interface, with no MRI abnormal white matter signal. -no MRI evidence of focal ischaemic insult or heamorrhagic vascular accidents. -no sizable intra or extracranial masses or collections. -normal posterior fossa structures. -clear scanned paranasal sinuses . Opinion -grossly unremarkable MRI study of the brain.
Hi, welcome to HCM
T1, T2 and flair are sequences taken in MRI, it is technical language.
Your MRI scan is absolutely normal. It will quite difficult to understand all the minor details in brain MRI, as one has to study all the anatomy.
Report has explained the all structures in brain like...
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My son had an MRI done yesterday on his right knee (baseball injury six weeks prior). Some findings were:

1. thin Bakers cyst extending superiorly deep to the semimembranosus uscle.
2. There is an abnormal marrow signal involving the proximal fibula. This is seen involving the epiphysis and proximal metaphysis [What is this?]
3. periosteal thickening with increased signal along the lateral proximal fibular metaphysis which is incompletely visulatized.
4. Periosteal thickening measures up to 4.5 mm in thickness and extends posteriorly as well.
5. x-rays from 3/28/13 reviewed show no osseous abnormality of the proximal fibula.

What does this mean?
hi dear
1.baker cyst is an incidental finding and symptom due to cyst depends on size of cyst.
2.abnormal marrow signal intensity is incomplete language it depends on how it look on various sequence of MRI.
3.periosteal thickening may be due to infection.
4.xrays as compared to MRI have much...
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Yes, I just had a MRI done and there was a black shadow in the middle of it. This is my second MRI as my Dr. wanted to follow up on an incidental finding. The reason I got a MRI was because the right side of my face keeps getting numb. Should I worry?
Thanks for your question.
Numbness in one side of face is neurological problem.
Your Doctor might have found some problem in MRI.
Hence he asked you to follow up.
Do follow doctor's advice and take medication as per doctor advice.
Thank you.

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This is my MRI results and I wanted to know what the meaning of this is. Here it is.
its almost 6 months now

MRI Lumbosactal Spine
Straightening of lumbar lordosis suggesting of pravavertebral muscles spasm.
L-4-L-5 and L5_S1 discs show low T2WI signal suggesting of degenerative disc lesion.
Marginal and Posterior osteophytes are noted.
L-4-L5 and L-5-S1 discs show diffuse posterior bulge with indentation of thecal sac with bilateral narrowed exit foramina.
Preserved vertebral bodies’ height, shape and their bone marrow signal intensities.
Maintained height and signal intensity of the other examined discs, with no disc bulges or herniations.
The visualized terminal part of spinal cord and conus medullaris are of normal configuration and signal characteristics.
The bony spinal canal displays normal width.
No para spinal soft tissue abnormality detected.
In short your MRI Revealed degeneration and mild prolaps of disc( it is present between two vertebrae ) in between 4th and 5th lumbar vertebrae and another between 5th lumbar n 1st sacral vertebrae.
Bony outgrowth(osteophyte ) which is found posteriorly n small .
Loss of distal curvature of...
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Ten days following a traumatic incident, one radiologist reviewing an MRI sees a complete ACL tear from its femoral attachment. Five months later and another MRI, another radiologist sees an intact ACL with signal abnormality in the middle and distal and a tiny intrasubstance ganglian cyst in the middle of the ligament . What to do? ... another MRI with a different radiologist?
Thanks for writing in.

I would have appreciated seeing both MRI scans before giving an opinion. I suggest you take the earlier MRI to the second radiologist and request an opinion and discussion of the same with your doctor.

Hope this helps
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I got a MRI done over a year ago. The paper lets me know; "There is a left middle cranial fossa presumed arachnoid cyst measuring 40 mm with mass effect on the adjacent left temporal lobe." I got this MRI done because my headaches were getting really awful. They are only worse and ive had these headaches for about maybe 3 years. They just keep getting worse. When I went to a neurologist he told me I was "depressed" and needed to be on suicide watch. I am clearly not suicidal. I decided to take matters into my own hands. I cannot figure out why my headaches are getting this bad. I have a referral out for another MRI as well. Can you let me know what this kind of cyst can cause or do to me and if I need real help.
Does she suffer from a fever by any chance?
If so, I would suggest that she consider narcotic pain medication to relieve her 3 levels of pain. Her severity of pain sounds like she would only benefit from th pain medication, and it would improve her overall quality of daily life. If she suffers...
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