Magnetic Resonance Imaging (MRI) is an advanced imaging technique that uses a powerful magnetic field and radio waves to produce detailed pictures of your internal organs and tissues. This scan helps doctors diagnose and monitor a variety of conditions without surgery or exposure to ionizing radiation. Here is some information about what to expect for an MRI scan:
Before the Scan
When preparing for your MRI scan, you will likely be asked to arrive at the imaging center about 15 to 30 minutes before your scheduled appointment to complete some paperwork. Wear comfortable, loose-fitting clothes, as you might be asked to change into a hospital gown. Metal can interfere with the MRI’s strong magnets, so you will need to remove all jewelry, watches, hairpins, eyeglasses, and hearing aids. Items such as keys or electronic devices also need to be left outside the scanning room.
Next, you will be given a screening questionnaire. This form includes questions about your medical history, implants or devices in your body, and whether you have previously had a reaction to contrast material. Some implants, such as pacemakers or cochlear implants, may not be compatible with the MRI machine.
In some cases, your doctor uses a contrast agent to improve the visibility of certain structures. A nurse will place an intravenous line in your arm or hand. If you have a fear of small spaces or mild claustrophobia, notify your care team in advance. In some situations, mild sedatives may be offered for extra comfort.
During the Scan
The MRI machine itself is a large, tube-shaped magnet with both ends open. The inside is well-lit and well-ventilated. Once you enter the scanning room, the staff helps you lie down on a padded, motorized table; your body position depends on the area being scanned.
A MRI technologist operates the scanner from an adjacent control room, but you remain in full view at all times. The staff communicates with you using an intercom system, and you will have a call button to use if you need assistance or want to speak. The scan is painless, but the equipment produces loud, rhythmic knocking or thumping sounds during use. Earplugs or headphones help reduce this noise, and sometimes music is played to distract and relax you. Staying as still as possible during the imaging is necessary for clear results; small movements may require the technologist to repeat part of the scan.
After the Scan
Once scanning is finished, the technologist returns to help you off the table. If you received a contrast agent, the IV will be removed, and you may be offered a drink of water. There are no restrictions on eating, drinking, or driving after a standard MRI. Many people resume regular activities right away. If you were given a sedative, you may be asked to stay a short time until you’re fully alert. Your images are stored electronically and reviewed by a radiologist, who creates a detailed report. This report is sent to your referring doctor, who will review the findings with you at your next appointment.
Schedule an MRI Scan Today
An MRI scan lasts about 20 minutes, but the duration depends on the area of the body being scanned and the number of images required. Results are usually sent to your primary care provider within 24 hours. Contact a radiology clinic today to schedule an appointment or learn more about MRIs.
