What Is MRI?
Magnetic Resonance Imaging (MRI) uses radio waves and a strong
magnetic field to provide clear and detailed images of internal organs
and tissues.
MRI is different than other radiology
procedures because it does not use radiation to obtain images. MRI
requires specialized equipment and registered technologists.
The
radiologists performing your MRI have received additional training
through Fellowships and Board Certifications.
PENRAD Imaging uses high field units to perform MRI exams, ensuring the
best possible image quality. Many patients feel reassured about their
test knowing that MRI may replace the need for exploratory surgery.
Healthcare providers are excited about MRI because it is safe, painless
and provides information previously unavailable.
How MRI Works
 Using a large magnet, radiowaves, and a computer, an MRI produces
extraordinarily detailed images of the body.
An MRI exam consists of
multiple sequences that each show a cross section of the body in one of
several planes (right to left, front to back, upper to lower).
Depending on
the complexity of the study, your exam may take between 25 and 60 minutes,
though more time may be required for very detailed exams.
A contrast
material may be used for certain examinations to enhance the visibility of
specific tissues and may be placed in an arm or hand vein. MRI contrast
materials are unlikely to cause an allergic reaction.
Exam Preparation
Most MRI examinations do not require specific preparation but do
include certain general precautions.
When you schedule your exam, let us know if you are claustrophobic
and appropriate arrangements will be made. Remove loose, foreign or
metal objects prior to exam (such as jewelry, dentures, watches,
credit cards, body piercing rings, hair pins, trans-dermal patches).
Continue taking prescribed medications. No metallic snaps, buttons,
or zippers on clothing; wear sweat pants, t-shirts or an exam gown.
Your hair should be dry and free of wet styling gel. You may be asked to
remove eye-makeup if the exam involves the head or neck.
You must let the technologist know if you are – or suspect you might
be – pregnant.
MRI is generally not recommended during the first 12
weeks of pregnancy; however, there is no evidence that a hazard
exists. In certain cases, a scan may be advisable since it is safer
than X-Rays or CT scans.
During the Exam
You will be asked to lie on the movable examination table while
the technologist places a receiver coil
near the body part being examined.
Occasionally, the technologist
will use another device to monitor your breathing or heart rate.
Depending on your study, a technologist or nurse may inject a
contrast agent into your vein.
The exam table then slides into the
magnetic housing. During the scan you will hear noises ranging from
tapping to grating which can be quite loud. The technologist
observes you during the exam and will communicate with you via
intercom.
For your comfort, the MRI is well ventilated and stereo
headphones or earplugs are provided. It is important that you remain
completely still during the study, since even slight movements will
reduce image quality.
A family member can accompany you during your
exam since there is no risk from radiation.
After the Exam
A Board Certified Radiologist will interpret your MRI study and
provide a formal report as your permanent medical record.
The formal
exam results will be sent to your referring healthcare provider, who
will in turn discuss the results with you.
At this time, your
healthcare provider may recommend further testing, or suggest a
treatment plan for your condition.
Sedation Protocols
Registered Nurses are on staff at PENRAD Imaging to monitor all
sedation exams and provide additional continuity of care for our
patients.
Alert
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Metallic devices may prevent you from receiving an MRI exam - examples of these devices include: pace makers and/or pacer wires, aneurysm clips, implanted nerve stimulator, embedded shrapnel, medication pumps, inner of middle ear transplants. |
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You must inform the technologist if you are, or think you might be, pregnant. |
Further Information
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Feel free to contact our facility or check with your
healthcare provider for additional information. |
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