Below is a list of some frequently asked questions, but please
feel free to contact us if you need additional information.
We are always pleased to assist you.
What is a Magnetic Resonance Imaging (MRI) exam?
MRI is a diagnostic test that depicts both soft tissue and bone.
MRI depicts soft tissue injury and abnormalities with greater
sensitivity and specificity than conventional imaging techniques.
Mercy Medical Center has expertise in high resolution MR imaging.
Our new state of the art equipment is smaller and faster that
the magnets that are a few years old.
Why has my doctor ordered an MRI exam?
Most people want to know why they are having symptoms of a physical
problem. Your doctor has ordered an MRI to make, confirm, or
exclude a diagnosis with treatment of your condition as the
goal.
Who performs and interprets the MRI exam?
Your exam will be performed by a technologist who has years
of training in specialized magnetic resonance imaging, under
the direction of an attending radiologist. The attending Radiologist,
who specializes in and has advanced training in MR imaging,
will protocol the examination in the area of interest and interpret
your examination.
A Radiologist is doctor specializing in all imaging modalities
including MRI, ultrasound, nuclear medicine and CT. Radiologists
specialize in the imaging and diagnosis of disease. Interpretation
of a radiograph MRI, CT, ultrasound, or nuclear medicine examination
requires expertise in pattern recognition and in the identification
of potential artifacts that may otherwise be mistaken for pathology.
Radiologists are trained in the variable sensitivity and specificity
of each imaging technique, and in the potential for hazards
related to the examination that could cause harm and must be
avoided. All the Radiologists at Mercy Medical Center are Board
Certified by the American Board of Radiology.
How is an MRI performed?
There is little or no risk in having an MR exam. You will lie
on a table within a high strength external magnet. During the
examination, you will hear loud banging which is electrical
gradients that drive the machine.
What should I do to prepare for an MRI exam?
Persons with severe claustrophobia may consider taking a sedative
with their doctor's approval. If you are a pregnant women in
the first trimester, an MRI examination is not recommended.
After that, you should obtain the approval of your obstetrician.
Preparing for an MRI exam is easy. Unless your doctor tells
you otherwise, you may take your medications as usual. There
are no food or drink restrictions either. The only unusual preparation
for an MRI scan is that all removable metallic objects must
be left outside the scanning room. These include:
- Jewelry
- Keys
- Watches
- Coins
- Eyeglasses
- Removable hearing aids
- Dentures and other prosthetic devices
Credit cards should not be brought anywhere near the MRI magnet.
Since they are magnetically coded, the MRI’s magnet, which is
very powerful, can easily corrupt the information stored on
them.
What are the risks?
MRI is one of the safest diagnostic exams available. Unlike
x-rays and computerized tomography (CT), MRI does not use radiation.
However, if you wear a pacemaker or have certain body (e.g.,
ear) implants, you should not have an MRI examination. You will
fill out a questionnaire prior to the MRI to ensure your absolute
safety.
What are the alternatives?
Alternatives tests include CT (a specialized cross sectional
x-ray imaging modality); Bone Scanning (an excellent modality
when a generalized skeletal survey or screening is indicated);
and Ultrasound (a non-invasive examination which uses sound
instead of ionizing radiation to evaluate soft tissues.)
What can I expect after the MR examination?
There are no after effects of an MR examination. Following an
MR examination, you will be able to immediately resume your
pre-examination activities.
What happens with the results?
The Radiologist will generate a written report, which will be
available to your physician on the same day of the MR exam.
The resulting report is sent to your referring physician and
will become part of the permanent record. Your physician will
review the MR test results with you and can integrate the results
of your MR test with the findings on your physical examination
and laboratory tests.
Copies of the report can be obtained through your referring
physician's office. The radiographs are the property of the
institution as are biopsy slides or blood samples. Copies of
the radiographs can be obtained by contacting the file room.
There is a charge for obtaining film copies and mailing them
to your physician.
Will other tests be ordered?
Additional tests to assess your problem may be ordered before
of after the MRI at the discretion of your doctor.
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