| Unlike
traditional X-Rays or CT scans, MRI does not use ionizing radiation. It
also does not require the use of radioactively labeled dyes. In addition,
MRI can see through bone and produce images of blood vessels, cerbrospinal
fluid, cartilage, bone marrow, muscles, and ligaments. MRI is particularly
useful to detect tumorsin the region at the back of the brain between
the ears, lesions associated with Multiple Sclerosis, joint injuries,
and herniated disks.
No
special preparation is needed prior to an MRI. Those who are claustrophobic
may request a mild tranquilizer from their referring physician prior to
the study.
Magnetic
Resonance Imaging (MRI) has considerably extended the physician's capability
to detect and identify injuries and diseases in their early stages as
well as the ability to perform well directed, gentle, and cost-reducing
therapy.
My
doctor ordered an MRI. What should I expect?
Depending
upon the exam, an MRI takes 30-45 minutes. You will be screened and your
medical history will be gone over prior to the exam. The procedure will
be explained to you and you will be made as comfortable as possible. It
is important to remain still during the procedure.
Is
it safe to have an MRI?
Yes
it is. MRI does not use radiation; instead, an image is produced using
a large magnet, radio waves and a computer.
Is
there any preparation?
No,
however, if you are in pain and have a hard time lying still, we suggest
you take your pain medication. You cannot wear metal in the area that
you are being scanned. You can wear sweat clothes; shorts or pants without
a zipper if you choose. We do have gowns that you can change into. If
you have plain films or prior tests we suggest you bring those with you.
What
precautions are there?
The
MRI scanner is a magnet and therefore metal objects; credit cards; watches,
bobby pins and other metal objects cannot be brought into the room. We
have wheelchairs and oxygen tanks that are compatible with the scanner.
Can
anyone have an MRI?
You
cannot be scanned if you have cardiac pacemaker; metal in your eyes; aneurysm
clips or cochlear implants. There are other implanted devices such as
defibrillators and retinal tacks. You will be screened to make sure you
are safe to have a scan. PLEASE notify us if you have had surgery within
the past 6 weeks.
Do
I need an order for an MRI?
Yes!
You must have a script from your physician. The script needs to say exactly
what type of an MRI you need. It needs to indicate if you are having contrast.
Why
would I need contrast?
Contrast
(gadolinium) is used for certain studies. For example: if you have had
surgery on your spine, it is used to differentiate between a new injury
and scar tissue. If the diagnosis is MS; contrast is used to highlight
the possibility of plaques. It also highlights tumors. Contrast is a clear
solution that is injected into your veins. It is injected partway through
the study and then some sequences are performed again.
The
script says one area but I think I should have more than that?
First
of all, an MRI is specific to the area your physician orders. We have
to go by what the script says. If it says left shoulder but both of your
shoulders hurt, we cannot add the right shoulder. The same with your spine
- if the script says lumbar; we will scan your low back area and that
is all.
If
you think you need something else scanned please discuss that with your
physician prior to your appointment. If another scan is added, we need
to be notified. You are given a 45 minute time slot for each scan.
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