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What is MRI?
Magnetic Resonance Imaging is an advanced imaging
modality that can accurately produce detailed images of
almost any organ in the body. A strong magnetic field and
radiofrequency waves are used to yield high quality images.
These images allow the Radiologist to diagnose a wide range
of pathologic conditions throughout the body. An MRI also
allows for 3-dimensional viewing of anatomy in any plane.
What are the advantages of MRI?
MRI is a non-invasive study that does not require the use
of Radiation (X-rays). It can allow for an early and
accurate diagnosis and sometimes eliminating the need for
other diagnostic tests. MRI is excellent for visualizing
soft tissue, ligaments, tendons, and muscles. MRI can be valuable in diagnosing sport injuries as well as back and
spinal injuries. Very small tears and bone fractures can be
seen in detail as well.
What are the advantages of Evergreen’s MRI vs. an open
magnet?
Evergreen Imaging has a new state-of-the-art MRI that is
a short-bore high field magnet. A common misconception is
that open magnets have the same quality of images as a high
field MRI. Open magnets are generally used for the severely
claustrophobic patient. With a high field MRI, there will be
shorter scan times and a significant increase in the quality
and resolution of images that cannot be matched by open
MRI’s. Additionally, small tears, muscles, ligaments, and
other anatomy have the potential to be missed on open
magnets which makes our high filed magnet an attractive
option.
Is there any risk to having an MRI?
Magnetic Resonance Imaging is a very safe and
non-invasive procedure. There is no health risk associated
with having the exam.
However, there are special circumstances which may prevent a
patient from having the exam due to the strong magnetic
field. This determination can be made by the referring
physician or by calling us directly. The patient will be
screened prior to having the MRI but please be aware that
the following are some of the items that may not be
compatible with the magnetic field:
• Cardiac Pacemaker or Defibrillator
• Brain Aneurysm Clips
• Insulin Pumps or other Infusion Pumps
• Certain Ear and Eye Implants
• Metallic Objects in the Eye
What are the expectations for a MRI?
After you have been properly screened, you will be asked
to lock up all your valuables and loose metal. You also may
be asked to change into a gown if there is metal located on
your clothes that will affect the scan.
The technologist will then have you lie on a table and place
you in our short-bore magnet. Every effort will be taken to
make sure you are comfortable such as cushions, pillows, and
blankets. You will also have the option of listening to a CD
during the exam. Once the procedure starts, you begin to
hear thumping and humming noises which is normal. You will
not feel anything during the test.
Some exams may require the injection of a small amount of
contrast that will highlight your blood vessels and tissues.
This contrast has an excellent safety profile and the chance
for reactions is extremely rare.
How long does an MRI take?
The average exam takes between 35-45 minutes depending on
the anatomy being scanned.
Can a pregnant woman be scanned?
Yes, if the physician feels the exam is warranted. It is,
however, generally not advised to scan a pregnant woman
during the first trimester.
Is there any preparation for an MRI exam?
Most exams require no preparation. However, some exams of
the abdomen do require a fasting of 4 hours before the test.
You will be informed of any preparation during the
scheduling of the appointment.
What is an MRA (Magnetic Resonance Angiography)?
An MRA is a special scan that specifically looks at your
blood vessels and their functionality. This non-invasive
procedure is extremely safe and helps the Radiologist
evaluate your body’s arterial or venous systems. This
procedure may require the injection of a small amount of
contrast into your vein. |
