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Some conditions may make an MRI examination not a good idea. Tell your doctor if you have any of the following conditions:
Cerebral aneurysm clip (metal clip on a blood vessel in the brain)
Implanted insulin pump (for treatment of diabetes), narcotics pump (for pain medication), or implanted nerve stimulators (TENS) for back pain
Metal in the eye or eye socket
Cochlear (ear) implant for hearing impairment
Implanted spine stabilization rods
Severe lung disease (such as tracheomalacia or bronchopulmonary dysplasia)
Severe acid reflux
Weight of more than 300 pounds
Not being able to lie on back for 30 to 60 minutes
Claustrophobia (fear of closed or narrow spaces)
How Long Is the MRI Exam?
Allow 1 1/2 hours for your MRI exam. In most cases, the procedure takes 45 to 60 minutes, during which several dozen images may be taken.
What Happens Before the Exam?
Personal items such as your watch, wallet (including any credit cards with magnetic strips – should not be brought into the room with the MRI machine in it.The credit cards will be erased by the magnet), and jewelry should be left at home, or removed prior to the MRI scan. Secured lockers should be available to store personal items.
What Happens During the Exam?
You will be asked to wear a hospital gown during the MRI scan.