Magnetic resonance imaging ( MRI ), nuclear magnetic resonance imaging ( NMRI ), or magnetic resonance tomography ( MRT ) is a medical imaging technique used in radiology to visualize detailed internal structures. MRI makes use of the property of nuclear magnetic resonance (NMR) to image nuclei of atoms inside the body. An MRI machine uses a powerful magnetic field to align the magnetization of some atomic nuclei in the body, and radio frequency fields to systematically alter the alignment of this magnetization. This causes the nuclei to produce a rotating magnetic field detectable by the scanner and this information is recorded to construct an image of the scanned area of the body. Magnetic field gradients cause nuclei at different locations to rotate at different speeds. By using gradients in different directions 2D images or 3D volumes can be obtained in any arbitrary orientation. MRI provides good contrast between the different soft tissues of the body, which makes it especially useful in imaging the brain , muscles , the heart , and cancers compared with other medical imaging techniques such as computed tomography (CT) or X-rays . Unlike CT scans or traditional X-rays, MRI does not use ionizing radiation .
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Hi Dr. My son is having problem with his neck. He cracks or pops his neck all the time. We have done MRI, CT scan and head scan no problem has been found.
if he does not crack or pop his neck, he does not feel fine. Sometimes he pops more and...
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I have a numbness on the right hand side of the crown of my head. It feels as if I have had a anaestetic injection. Should I be concerned?
5 year old girl, suffers with upper back burning only when in heat or under sun, now its accompanied with headache and slight dizziness and today its a combination of both BUT now she complains that the front of her...
My friend diagnosed with nurocysticircosis initailly on the basis of onset of seizures,CT Scan, blood tests and negative TB Skin test. Later another nurologist advised for a MRI and the radiolgist reported it as a perietal tuberculomas...
Your opinion on the MRI report as enclosed.
What disorder is reported in the MRI
Diagnosis
Pain relief Management?
I have the following symptoms:
- a buzzing in my left ear, which comes and goes;
- a wet sensation in both the left and right ears (sometimes it feels as though fluid is trickling in my ears).
I have seen 2 ENTs who have confirmed there...
3 nights ago, I touched my abdomen (upper left below rib) and I felt a burning sensation. It almost felt like a hot iron was being held to my skin. The entire left side of my torso feels the same way but only when...
What does minor shadowing on a ct scan mean ? Esp if my MRI came back normal ??
I am a 32year old female who slipped in the wet 3 days ago and sprained my ankle. I RICE'd it for 2 days and put heat on it for 1 and the pain has slowly gone and i Can walk so much better. However tonight I feel a...
Hi I have been having weird symptems for 11 months now. Started with face feeling stiff,then tingling hands and feet, then twitching all over my body some hot spots also severe eye floaters just apard out of the blue....
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Online Doctor Chat (798) - Magnetic resonance imaging
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User : I have the problem at my legs
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User : my brother got an accident on 24 th of this month, the condition in is alleged history of rta,history of loc,...
User : Is it possible to tell the difference between calcium and a foreign body on a CT scan? on an MRI? My MRI says susceptibility the CT says punctate hyperdense focus (could represent focus of calcium or a foreign body)...what does this...
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User : I m suffering from a problem wherein i always have a buzzing sound in my head which is more pronounced when I did'nt get adiquate sleep.
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User : had a t.b.i. a year ago. mri on 9/8/10 showed periventricular white disease surrounding right frontal horn. what does this mean and is it relate to t.b.i. still have headaches, memory issues, sleepy all the time and balance issues and feel...
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Public Forum (4273) - Magnetic resonance imaging
1 Answer
what is the term for a racing heart?
2 Answers
since yesterday i have been suffering with discomfort in my lover left rib its feels tender and bruised like
1 Answer
Could you please tell me tablets for sprain ?
1 Answer
sir what is hydrocele means and how can it be cured
2 Answers
hello I am worried about numbness in my left thigh, does this have any relation to ms as this condition runs in my familly
3 Answers
HI. A friend of mine isn t able to recognise people s faces. He had consulted a retina specialist and a neurologist but they weren t able to find a solution. He is not able to read from certain distances and does not easily recognise people s faces. Pls do give a solution to this problem
2 Answers
i dropped something heavy on my foot several weeks ago. now all the bruising is gone and i am not in any pain but there is a little lump on the top of my foot. It s a little smaller than a pea. Any idea as to what it is??
2 Answers
I just got my MRI results back and it says that T1 AND T2 weighted images of the brain demonstrate an abnormal diffuse appearance of the brain parenchyma. Incidentally noted are prominent perivascilar spaces....what does this mean? But it sayd Normal mri of the brain for my age....I m 33
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my daughter 10 yrs suffering from seizures for the past 41 days , she is treated medically in hospital she is been provided with medazolam 3.5 mg per hour and still she is getting mild seizures and she is prescribed with acyclovir ( zovirax 250 mg IV) for 21 days and the MRI CT scan reports are normal, and the CSF test shows a negative og HERPIZ...
2 Answers
i am 30 years old lady.i have one baby.i have severe dark circles around my eyes last 10 yearsdue to studies.plz can it remove it through any surgery .i have use many creams for removel it after doctors suggestons but no effect seen..
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