Our Services

What is an MRI?

MRI stands for Magnetic Resonance Imaging. An MRI scan is a radiology technique that uses magnetism, radio waves and a computer, rather than x-ray, to produce precise and detailed "MRI images" of the body. The procedure is painless and has no known side effects. MRI can "see" through hard bone to the soft tissues in your body like muscles and internal organs. These MRI images are excellent at showing differences between normal and abnormal tissues and can be described as thin slices that give the radiologist an "inside view" of the internal structures of your body. An MRI scan can be used as an extremely accurate method for doctors to diagnose a variety of conditions, earlier and faster than ever before, and aids in determining proper treatment options. MRIs and the associated MRI images are commonly used to examine the brain, spine, joints, abdomen, and pelvis. The MRI scanning time ranges from half an hour to an hour and a half, depending on the exact area of the body studied. A special kind of MRI exam, called magnetic resonance angiography (MRA), examines the blood vessels. MRA is an MRI study of the blood vessels to detect and diagnose vascular disease, such as carotid artery disease and others.

The MRI and image technology at PMI in Portland, Oregon was designed to address the loud knocking noises that many patients find uncomfortable. At PMI, we have the quietest MRI machine available. The gantry, or opening, is wider than most scanners allowing more patient space. The gantry is also shorter than most MRI scanners, which means a lower chance of claustrophobia for you. Please call the center if you would like to visit and see the technology before your appointment, (503) 215-8900.

Do I have to do anything special to prepare for my MRI?

All metal and electronic devices (eg, watches, jewelry, cellular phones, and credit cards) must be removed from your clothing and body before the exam. This protects valuables from the effects of the MRI machine. Depending on what part of the body is being imaged, a hospital gown may be necessary. We suggest that you wear clothing and accessories that are metal free. No other preparation is needed for most MRI exams. Because MRI technology uses a strong magnetic field, please tell your physician and your technologist if:

• You have a pacemaker, implanted pump, or nerve stimulator
• Metallic materials, metallic chips, surgical or brain aneurysm clips, or foreign material (artificial joints, metallic bone plates, or prosthetic devices, etc.) within the body
• Artificial heart valves, metallic ear implants, bullet fragments, or chemotherapy or insulin pumps
• Had prior surgeries
• You may be pregnant
• You have had prior contrast allergies/reactions to dye
• You suffer from claustrophobia

What is a contrast agent?

Some MRI exams require injection of contrast material into your vein. If this is the case, our technologist will start an IV in your arm prior to the procedure. The contrast material used for an MRI exam, called gadolinium, does not contain iodine and is not likely to cause an allergic reaction. However, if you have had a reaction in the past, please be sure to let your technologist know.

How will I get my results?

After the MRI scanning is completed, the computer generates visual MRI images of the area of the body that was scanned. One of our sub-specialist radiologists, a medical doctor trained to interpret various imaging studies, will interpret the results of your scan and will send them to your doctor. Your physician will then discuss the results with you.

You can save time at check-in by completing our online pre-registration form.

If you would like to learn more about your specific procedure, visit radiologyinfo.org.