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MRI

MRI stands for magnetic resonance imaging. It is a particularly useful scan for neurology, cardiology and oncology patients. Questions on how they work, their development and uses can go in this category.

800 Questions

What is pneumonic process as it relates to MRI results?

Interval resolution of the hyper metabolic opacities in the lower lobes suggesting resolution of the pneumonic process

Can you have an MRI if you have wires on your teeth?

You should be allowed to have an MRI scan if you have wires on your teeth, such as fixed braces. However, if the braces are removable, then you may be asked to take them out before your scan. Contact your dentist or the MRI Unit where your appointment is to find out the exact regulations.

What does an area of indurated tissue located in the subcutaneous fat anteriorly and medially mean on an MRI of the TibiaFibula?

What does an area of indurated tissue = a hard lump

located in the subcutaneous fat = under the skin, but not too far under

anteriorly and medially at the front a little towards the middle

LOL In other words, nothing you probably didn't find with your fingers. I hope you get some more answers soon.

Can you take an mri of the cervical spine on one day and an mri of the brain the next day?

Yes. There's no real limit to how many MRIs you can have because there's no radiation involved - it uses powerful magnets. The only thing is that a cervical spine MRI and a brain MRI all at the same time might take quite a while so it's senisible to space it out a bit.

What does an MRI mean when it says herniated disk with caudal dissection at L3 4 on the left side compressing the left L4 nerve root and the dural sac?

It means a piece of your disk has broken off completely form the rest of the disk, and it is pressing on a nerve root that branches off from your spinal cord.

In MRI how do TR and T1 relate?

  • A long TR and short TE sequence is usually called Proton density -weighted
  • A short TR and short TE sequence is usually called T1-weighted
  • A long TR and long TE sequence is usually called T2-weighted

Does some glitter in makeup contain metals that are magnetic or will heat up in high temperatures Specifically is it a danger if someone has makeup glitter on body or in eye during an MRI?

Glitter in powder makeup often comes from fish scales. I'd recommend not putting on makeup before your MRI, or calling the manufacturer of a specific product you are worried about.

What are the differences in T1 weighted and T2 weighted MRI images?

T1= Fat- Appears Bright e.g. Grey matter

= Water- Appears Dark e.g. CSF, water

T2 Just opposite to T1

Where can one obtain a free MRI scan?

By and large, a free MRI scan is not typically going to be provided free, even with quality insurance. The only instance where a person could obtain a free MRI is as part of a workman's compensation claim.

How is an MRI scan obtained What kind of atom is the MRI scanner targeting to get an image?

An MRI scan is obtained by using radio frequency waves (similiar to FM radio waves) to energize Hydrogen atoms in fat and water. When you add energy to the Hydrogen atoms you can create a signal that can be then turned into an image.

What and where is an annular tear which is related to my cervical spine MRI?

The bony spine is made up of bones which stack one upon another. These bones are called vertebrae. These vertebrae are separated from each other by discs. There is a disc between every 2 vertebrae. The discs are hockey-puck-shaped cushions with a capsule very much like nylon tape, filled with a jelly-like subsance (called the nucleus pulposus). A herniated disc is a disc which has a tear in the capsule, from which protrudes some of the jelly-like substance. An annular tear is a tear in the disc. This is what the radiologist says you have when he sees a tear in the disc but nothing protruding through it. The question of whether an annular tear can actually cause pain is controversial. Some authorities say it can, some say it can't.

What is a functional MRI?

Functional MRI is an MRI procedure to determine activation in the brain during activities or in disease condition. Also known as fMRI. fMRI uses the same MRI machine as other examinations but it requires special additional software. Detection of activation in the brain is determined by the oxygen content in the blood vessel under the premise that oxygen level is high when the brain is activated.

How much does a full body mri cost in India?

my father 80 years old he has prostate carcenoma recent diagnosis now he needs {whole body mri}my qustion is {how much cost it in india?}

After an arthrogram how quickly should the mri study be done?

MR arthrogams are done in two steps. Step 1. A direct injection is done into the joint using a needle, diluted contrast, and fluoroscopy guidance. The procedure can take anywhere between 15-45 minutes depending on the degree of difficulty in accessing the joint space. Step 2. An MRI is performed with sequences and positioning specifically tailored for the arthrogram. The arthrogram is usually performed between 30 and 45 minutes after injection in Step 1, though can be done up to 3 hours later if planned accordingly and with a less dilute contrast given during Step 1.

Why check kidney functions with a blood test before an MRI?

If contrast is going to be usedduring the MRI, kidney function must be adequate to filter the contrast. If they are compromised the contrast can cause a serious disease.

Are metal fillings affected by MRIs?

Only if they are still semi-liquid in the middle.

If they are ( maybe 1% are ) then the filling, and so the tooth, will burst - very painful.

However, 99 times out of 100 it's fine

What are the advantages of a mri?

My perspective is that M.R.I is is good probably because it's used for x-raying your brain to see if there are any tumors or anything bad that is going on to your head. I think M.R.Is can't see wood, they can't see it through its scanner. I don't know why but it just can't.

Do you have a mri done with contrast?

MRI exams can be done:

1. Without contrast (dye) 2. With contrast (dye) 3. With and without contrast (dye)

The majority of MRI exams are done without contrast. Most common reasons for contrast administration include infection, cancer, and after surgery.

FDA approved contrast agents are gadolinium based and are safe to use in patients. However, they can have very harmful side effects if the patient develops an allergic reaction or has kidney disease or kidney failure. Without functional kidneys, the body cannot get rid of the gadolinium from the contrast agent, which can cause a deadly and incurable disease known as nephrogenic systemic fibrosis.