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MRI (Magnetic Resonance Imaging) is a noninvasive diagnostic tool used to identify and treat various medical conditions. These exams provide unparalleled views of internal body structures including the organs, soft tissues and bone, which cannot be seen using conventional X-rays or CT scans.
MRI technology produces clear and precise cross-sectional images. This diagnostic tool offers a quick and safe method for gathering pictures of the human anatomy allowing physicians to detect many conditions in earlier stages.
How does an MRI work?
Is an MRI safe?
The MRI imaging technique does not involve exposure to radiation. However, women should always inform their technologist if there is a chance they could be pregnant. Medical and electronic devices may interfere with MRI exams and pose a potential risk. Patients with any kind of metallic implant should not have an MRI unless their physician is aware of the device and has approved the procedure. Patients with pacemakers should not undergo an MRI.
The MRI team will work with patients who suffer from claustrophobia. Patients can come before their appointment and tour the facility to become better acquainted with the scanning process.
Satellite radio is provided in the MRI suite to help patients relax during their scan. A friend or family member (who has been screened for internal or external metal) may also accompany the patient into the exam room during the test.
Many patients request a mild sedative prescription from their physician prior to their appointment and arrange for a responsible adult to drive them home.
Yes, children can receive an MRI. The Radiology Department has specialty radiologists and a conscious sedation program to meet the unique needs of pediatric patients.
Parents can accompany their children into the scan room and remain with the child during the MRI exam. A Child Life Specialist is available upon request.
What forms do I need to fill in?
Yes, it is important for patients to continue taking all medications prescribed by their physician before their MRI exam. Patients should let their technologist know what medications they have taken prior to their MRI scan.
Patients will receive individual instructions about eating and/or drinking from a member of the MRI Department prior to their scan.
Patients should arrive 30 minutes before their scheduled appointment. This allows time to complete any necessary paperwork, answer any medical history questions, change clothes for the scan if necessary and ask any questions of the MRI technologist. Patients should bring their insurance cards and any insurance forms.
Patients should dress in loose-fitting, comfortable clothing such as a sweatshirt and pants without metal snaps or zippers. All valuables should be left at home.
Jewelry, glasses, hearing aides, dentures, hairpins, credit cards, coins, keys and other metal objects will need to be removed and placed in a safe location outside the scan room. Secure clothing lockers are provided for patients during their MRI scan. Patients are also advised not to wear cosmetics to their scan as many brands contain metal.
Depending on the type of exam, patients may receive a contrast agent intravenously (IV) through a vein in the arm or hand. Contrast mediums or contrast agents are safe injections used to highlight organs and blood vessels to help produce a better image for the radiologist.
If your physician or radiologist has determined that an IV will enhance your MRI scan results, you will receive an IV in your arm or hand prior to the test so the technologist can administer the contrast agent at the time of your scan.
When you are ready for your scan, a technologist will bring you into the MRI scan room and help you get comfortable on the padded examination table. The table will then move slowly into the opening of a large cylinder-shaped tube that houses the MRI magnet. You will hear a continual knocking noise while the machine takes pictures.
Earplugs are provided and significantly reduce the amount of noise during the scan. It is important to lie completely still while the images are being taken because motion will effect the sharpness of the image. The technologist will talk with you throughout your scan and keep you informed of what you can expect.
MRI scans are individualized and tailored to each patient's needs. Total scan times range from 20 to 60 minutes.
Patients who require a contrast agent will be given the IV injection after their preliminary scans. The patient will then return to the examination table to continue the scan. Pictures are needed before and after the IV injection when a contrast agent is used.
After the technologist completes the MRI scan, they will review all of the images to make sure they have complete information for the ordering physician.
Patients may leave immediately following their MRI scan and can go about their normal activities. Radiologists at Newton-Wellesley know that rapid results are essential for each patient's peace of mind and so physicians can begin planning treatment immediately.
After each MRI scan, a Newton-Wellesley radiologist reads the images in a timely manner. The Hospital has advanced, high-tech capabilities to provide physicians with fast MRI exam results.
Your doctor will provide you with your results.