Magnetic resonance imaging (MRI) is a noninvasive, usually painless medical test that helps physicians diagnose and treat medical conditions.
MRI imaging uses a powerful magnetic field, radio waves and a computer to produce detailed pictures of organs, soft tissues, bone and virtually all other internal body structures. The images can then be examined on a computer monitor or printed. MRI does not use ionizing radiation (x-rays).
You may be asked to wear a gown during the exam or you may be allowed to wear your own clothing if it is loose-fitting and has no metal fasteners. WE ask that you also arrive on time so that we can keep other patients close to their schedule. Arriving late may result in your appointment being rescheduled.
Jewelry and other accessories should be left at home if possible, or removed prior to the MRI scan. Because they can interfere with the magnetic field of the MRI unit, metal and electronic objects are not allowed in the exam room. These items include:
- jewelry, watches, credit cards and hearing aids, all of which can be damaged.
- pins, hairpins, metal zippers and similar metallic items, which can distort MRI images.
- removable dental work.
- pens, keys, pocketknives and eyeglasses.
The technician will discuss with you any metal objects that you have had surgically implanted. You should tell the technologist if you have medical or electronic devices in your body, because they may interfere with the exam or potentially pose a risk. Examples include:
- artificial heart valves
- implanted drug infusion ports
- infusion catheter
- intrauterine device (IUD)
- implanted electronic device, including a cardiac pacemaker
- artificial limbs or metallic joint prostheses
- implanted nerve stimulators
- metal pins, screws, plates or surgical staples.
During the MRI scan you will be positioned on the moveable examination table. Straps and bolsters may be used to help you stay still and maintain the correct position during imaging. Small devices that contain coils capable of sending and receiving radio waves may be placed around or adjacent to the area of the body being studied. You will be moved into the open area beside the magnet of the MRI unit and the technologist will leave the room while the MRI examination is performed. MRI exams generally include multiple runs (sequences), some of which may last several minutes. The entire examination is usually completed within 45 minutes.
A radiologist, a physician specifically trained to supervise and interpret radiology examinations, will analyze the images and send a signed report to our physicians, who will share the results with you at the scheduled test result visit. For more information on your specific test click here.
