Imaging Procedures - Patient Information
 


Magnetic Resonance Imaging (MRI)

What is MRI?

Magnetic Resonance Imaging (MRI) is a diagnostic procedure that uses a combination of a powerful magnet, radio frequencies, and a computer to produce detailed images.

The machine creates a strong magnetic field around the patient without using radiation. Using MRI, your doctor will be able to view organs and structures within the body to assist in diagnosis and treatment decisions.  


Exam preparation

The following will be completed before you exam is performed:

  • Your doctor will explain the procedure to you and answer your questions. If you have further questions, you may contact our Imaging Reception desk at 503-561-5760.
  • Due to the strong magnet, MRI cannot be performed on patients with implanted pacemakers or defibrillators.
  • If metal has been implanted in your body, such as pins, plates, screws, or wire mesh, please notify your physician. To ensure a safe and accurate exam, the MRI technologist needs to know specific information regarding any implanted metal. Bring this information at the time of your MRI.
  • You may take regular medications and eat and drink normally.
  • Women should inform their doctor and the MRI technologist if they are pregnant, may be pregnant, or are breast-feeding.
  • Wear comfortable, loose-fitting clothes. Avoid zippers and snaps if you want to wear your own clothing during the MRI. You will be asked to remove hairpins, jewelry (wedding bands are generally acceptable), eyeglasses and hearing aids. A gown will be provided if needed.

Claustrophobia: Many people are uncertain if they are claustrophobic. Depending on the type and length of the exam, you may need to be inside the MRI machine for 20 to 40 minutes. If you are concerned about claustrophobia, please alert your doctor. Arrangements for sedatives must be made prior to your exam. Our goal is to ensure your comfort during your procedure.

Open MRI: The open MRI is an alternative for patients who are claustrophobic. This machine does not have side enclosures and may be an option for some exams. Open MRI is also an option for patients who weigh more than 350 pounds, or whose body shape is not compatible with traditional MRI.


The exam

Durning registration, you will be asked to complete a brief questionnaire about your medical history, medications and allergies.

Notify the technologist if you have had a reaction to contrast dye. You will also be required to complete a metal checklist. The staff will bring you back to the MRI changing area and your valuables will be placed in a secure locker.

The technologist will assist you to the scanner. Pillows and positioning devices will be used to assist with your comfort and to provide support during the exam.

It is important to lie still during your exam. While the MRI procedure is painless, lying still for the length of the procedure may cause some discomfort.

The technologist will make you as comfortable as possible and complete the procedure as quickly as possible.

Some exams require contrast to be injected directly into a vein to enhance the visibility of certain tissues. If this is indicated, an IV (intravenous) line will be placed in a vein in your hand or arm prior to the procedure.

During your scan, the technologist will be outside the room, near the MRI controls. Speakers inside the scanner will enable the technologist to communicate with you.

During the scan, the equipment generates a loud noise. Ear protection will be provided. Each exam is tailored to the patient.

Our skilled and trained technologists will assure the most accurate images are acquired as quickly as possible.  

For more information or to pre-register, please call 503-561-3499.


After the exam

Once the exam is complete, your IV line, if placed, will be removed. The technologist will escort you to the changing area and provide access to your secured belongings.

You may resume your normal activities. If you received a sedative for anxiety or claustrophobia, you should arrange transportation.

The images will be studied by our radiologist and a detailed report will be sent to your doctor.

Contact your doctor to make arrangements to receive your results.