A magnetic resonance imaging, or MRI, scan is a noninvasive procedure that produces high-resolution images of internal organs and tissues, which can assist in the diagnosis of many medical conditions. If you’re scheduled for a scan, knowing what to expect will make the process more comfortable and efficient. Here's everything you need to know to prepare for your appointment.

What to Do Before the Test

You can continue eating normally and taking your regular medications unless your doctor tells you otherwise. Try to arrive at least 30 minutes before the appointment to check in and complete a screening form. 

Metals can be pulled into the magnetic scanner and distort images, so you will need to change into a hospital gown and remove all clothing and accessories that contain metal, including jewelry, dentures, piercings, eyeglasses, hearing aids, and hairpins. Let the radiologist know if you have anxiety or fear of enclosed spaces, as they may recommend sedation to keep you relaxed during the procedure.

If your doctor needs a very detailed image to evaluate an area, they may order an injection of MRI contrast. This substance enhances the appearance of certain body structures. A nurse or radiologist will administer it through an intravenous line before the exam begins.

What Happens During the Test

During the exam, you will lie on a table that slides into the opening of the MRI machine. There is a two-way microphone for you to communicate with the radiologist, who will monitor you from an adjacent room. There may also be an alarm button you can press in case you get anxious or need assistance. 

The machine uses a strong magnetic field and radio waves to take images of the body's inner tissues. It is a completely pain-free process. MRI machines produce thumping and banging noises while scanning, so you may notice these throughout the procedure. You must lie still during the scan, which can last between 15 minutes to an hour, depending on how many images are needed.

Following the exam, you can typically resume your everyday activities. If the session required sedation, the radiologist will have you wait until you are alert to leave. For safety purposes, take a cab or public transportation home.

If you need an MRI scan, Main Street Radiology of Bayside, NY, is here to help. Serving Queens and the surrounding communities, this experienced team uses advanced technology to diagnose a wide range of conditions. They are accredited by the American College of Radiology. Visit their website to learn more about MRI scans, or call (718) 428-1500 to schedule an appointment.