What is MRI, and what does it stand for?

MRI is short for Magnetic Resonance Imaging.  MRI is a method used by physicians to look inside the human body to obtain anatomical functional diagnostic information.

MRI utilizes the physical properties of magnetic fields, radio waves and computers to generate images of the tissues within the body.  Using a safe magnetic field in combination with radio waves of a specific frequency generates MRI signals from the body.  The MRI signals are detected and converted into a form, which the computer can understand.   The computer processes the MRI signals from the body to form the MR images.  Different tissue characteristics are revealed through this process and are thereby translated into different contrast levels on the MR images.  The trained physician can then review the MR images and form a clinical diagnosis.

MRI safety:

When preparing for your scan, it is important to take safety precautions.   You will be asked to remove all metal objects.  Most metal removable items are not compatible with MRI scanning.  Most surgically implanted metal objects are okay to be scanned, although we do need to know about them in advance. We screen and document every metal implant for your safety.

Before your scan, a technologist will talk with you in a private area and give you a locker to store your personal belongings.  You will need to remove any metallic objects because they can both interfere with the MR images and  lead to injury if brought within the magnetic field.  You may be asked to remove glasses, watches, cell phones, keys, beepers, body piercing jewelry, pocket knives, hairpins, clothing with metal fasteners, clothing with metallic threads, hearing aids and some prosthetic devices.  It is best to leave jewelry at home; however, we do provide a locked area to store your belongings.

Equipment Information:

• Hitachi AIRIS II
• Gantry Gap:  43 cm (17 inches)
• Table Width:  80 cm (31.5 inches)
• Table Weight:  500 lbs.
• Magnet:  Permanent 0.3 Tesla

If you have been scheduled for an MRI, please fill out the following forms (Assistant may have given them to you at the time they scheduled your MRI):