Magnetic resonance imaging (MRI) is an advanced medical imaging technique that uses a magnetic field and radio waves to create cross-sectional images of the human body. These highly detailed, clear images provide valuable diagnostic information and are extremely effective in evaluating a wide variety of medical conditions.

MRI of the brain

When you enter the exam room, you will see the MRI scanner. Essentially, it is a large circular magnet with a table extending from an opening in the center. A highly trained MRI technologist will help you get situated and comfortable on the table, explain the procedure, and answer any questions you may have. The technologist will monitor the exam from the adjacent control room.

Throughout the exam, you will be able to communicate with the technologist using a two-way intercom. As the exam begins, the table will gently slide into the magnet’s opening. The first of multiple MRI sequences will then begin. During each sequence, you will hear a tapping noise indicating the imaging process is in progress. The area of the body to be scanned and the complexity of the study determine the number of sequences. You will be asked to remain still during each MRI sequence. In certain instances, patients may be given an intravenous injection to increase the contrast between different tissues.

MRI of the Kidneys

No radiation is used during an MRI exam. Unlike a traditional x-ray, which uses small amounts of radiation to create an image, MRI relies on a magnetic field and radio frequency. An MRI exam is painless with no side or after effects.

Depending on how many images are to be generated, an MRI exam generally takes 15 to 45 minutes, although a very detailed study may take longer.

In most cases, no special preparation is needed for your MRI exam. You may go about your daily routine, eating, drinking and taking any medications as you normally would. Should your exam require any special preparations, the healthcare provider scheduling your exam will give you instructions.Due to the magnetic power of the MRI, it is important that no metal of any kind be permitted in the exam room. It is recommended that you wear clothing without metal zippers, snaps or buttons. If you prefer, you may change into a gown for your exam. Because some patients may have metal inside their bodies, please inform your technologist if you have: 

MRI of the knee

•  a pacemaker, artificial heart valve or aneurysm clips

•  any type of metal plate, pin or metallic implant

•  an Intrauterine device, such as Copper-7 IUD   

•  any metal fragments in your body (from a previous gunshot wound or from exposure to metal fragments on the job) In some cases, patients with any of the above will be rescheduled for an alternate diagnostic imaging exam.

Following your exam, a radiologist specializing in MRI will analyze and interpret the images from your exam and prepare a full report. This report will be sent directly to your physician who will share the results with you. To request a copy of the report, contact your physician’s office.

Minneapolis Radiology contracts with most major health plans and will submit claims for non-contracted plans as a courtesy for our patients.

When your physician orders an MRI for you, the physician’s office will contact Minneapolis Radiology to schedule your appointment.